11487 has 8 divisors (see below), whose sum is σ = 17536. Its totient is φ = 6552.

The previous prime is 11483. The next prime is 11489. The reversal of 11487 is 78411.

11487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11487 - 2² = 11483 is a prime.

It is a super-4 number, since 4×11487⁴ = 69644444001866244, which contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 547 = 11487 / (1 + 1 + 4 + 8 + 7).

It is a Duffinian number.

11487 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 11487.

It is not an unprimeable number, because it can be changed into a prime (11483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253 + ... + 294.

It is an arithmetic number, because the mean of its divisors is an integer number (2192).

2¹¹⁴⁸⁷ is an apocalyptic number.

11487 is a deficient number, since it is larger than the sum of its proper divisors (6049).

11487 is an equidigital number, since it uses as much as digits as its factorization.

11487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its digits is 224, while the sum is 21.

The square root of 11487 is about 107.1774229957. The cubic root of 11487 is about 22.5632786593.

Adding to 11487 its product of digits (224), we get a palindrome (11711).

Adding to 11487 its reverse (78411), we get a palindrome (89898).

The spelling of 11487 in words is "eleven thousand, four hundred eighty-seven".