12398856 has 16 divisors (see below), whose sum is σ = 30997200. Its totient is φ = 4132944.

The previous prime is 12398843. The next prime is 12398879. The reversal of 12398856 is 65889321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258286 + ... + 258333.

It is an arithmetic number, because the mean of its divisors is an integer number (1937325).

Almost surely, 2^12398856 is an apocalyptic number.

It is an amenable number.

12398856 is an abundant number, since it is smaller than the sum of its proper divisors (18598344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12398856 is a wasteful number, since it uses less digits than its factorization.

12398856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516628 (or 516624 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 12398856 is about 3521.2009315005. The cubic root of 12398856 is about 231.4517872501.

The spelling of 12398856 in words is "twelve million, three hundred ninety-eight thousand, eight hundred fifty-six".