102800856 has 16 divisors (see below), whose sum is σ = 257002200. Its totient is φ = 34266944.

The previous prime is 102800807. The next prime is 102800879. The reversal of 102800856 is 658008201.

It is a congruent number.

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, 2141661 + ... + 2141708.

Almost surely, 2^102800856 is an apocalyptic number.

It is an amenable number.

102800856 is an abundant number, since it is smaller than the sum of its proper divisors (154201344).

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

102800856 is a wasteful number, since it uses less digits than its factorization.

102800856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283378 (or 4283374 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 102800856 is about 10139.0756975180. The cubic root of 102800856 is about 468.4525172396.

The spelling of 102800856 in words is "one hundred two million, eight hundred thousand, eight hundred fifty-six".