12598987 has 4 divisors (see below), whose sum is σ = 12682576. Its totient is φ = 12515400.

The previous prime is 12598979. The next prime is 12598991. The reversal of 12598987 is 78989521.

12598987 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12598987 - 2³ = 12598979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12598987.

It is not an unprimeable number, because it can be changed into a prime (12598967) 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, 41568 + ... + 41869.

It is an arithmetic number, because the mean of its divisors is an integer number (3170644).

Almost surely, 2^12598987 is an apocalyptic number.

12598987 is a deficient number, since it is larger than the sum of its proper divisors (83589).

12598987 is an equidigital number, since it uses as much as digits as its factorization.

12598987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83588.

The product of its digits is 362880, while the sum is 49.

The square root of 12598987 is about 3549.5051767817. The cubic root of 12598987 is about 232.6904409532.

The spelling of 12598987 in words is "twelve million, five hundred ninety-eight thousand, nine hundred eighty-seven".