102788656 has 20 divisors (see below), whose sum is σ = 207812592. Its totient is φ = 49159616.

The previous prime is 102788641. The next prime is 102788663. The reversal of 102788656 is 656887201.

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, 139291 + ... + 140026.

Almost surely, 2^102788656 is an apocalyptic number.

102788656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102788656 is an abundant number, since it is smaller than the sum of its proper divisors (105023936).

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

102788656 is a wasteful number, since it uses less digits than its factorization.

102788656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279348 (or 279342 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 102788656 is about 10138.4740469165. The cubic root of 102788656 is about 468.4339851410.

The spelling of 102788656 in words is "one hundred two million, seven hundred eighty-eight thousand, six hundred fifty-six".