102857928 has 32 divisors (see below), whose sum is σ = 264096960. Its totient is φ = 33359040.

The previous prime is 102857917. The next prime is 102857929. The reversal of 102857928 is 829758201.

It is a self number, because there is not a number n which added to its sum of digits gives 102857928.

It is not an unprimeable number, because it can be changed into a prime (102857929) 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, 57028 + ... + 58803.

It is an arithmetic number, because the mean of its divisors is an integer number (8253030).

Almost surely, 2^102857928 is an apocalyptic number.

It is an amenable number.

102857928 is an abundant number, since it is smaller than the sum of its proper divisors (161239032).

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

102857928 is a wasteful number, since it uses less digits than its factorization.

102857928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115877 (or 115873 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 102857928 is about 10141.8897647332. The cubic root of 102857928 is about 468.5391915373.

The spelling of 102857928 in words is "one hundred two million, eight hundred fifty-seven thousand, nine hundred twenty-eight".