87401 has 4 divisors (see below), whose sum is σ = 88704. Its totient is φ = 86100.

The previous prime is 87383. The next prime is 87403. The reversal of 87401 is 10478.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87401 - 2⁶ = 87337 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 14 and 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 87401.

It is not an unprimeable number, because it can be changed into a prime (87403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545 + ... + 686.

It is an arithmetic number, because the mean of its divisors is an integer number (22176).

2⁸⁷⁴⁰¹ is an apocalyptic number.

It is an amenable number.

87401 is a deficient number, since it is larger than the sum of its proper divisors (1303).

87401 is a wasteful number, since it uses less digits than its factorization.

87401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 87401 is about 295.6366012523. The cubic root of 87401 is about 44.3784504359.

Adding to 87401 its reverse (10478), we get a palindrome (97879).

The spelling of 87401 in words is "eighty-seven thousand, four hundred one".