8688920 has 16 divisors (see below), whose sum is σ = 19550160. Its totient is φ = 3475552.

The previous prime is 8688919. The next prime is 8688943. The reversal of 8688920 is 298868.

It is a happy number.

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, 108572 + ... + 108651.

It is an arithmetic number, because the mean of its divisors is an integer number (1221885).

Almost surely, 2^8688920 is an apocalyptic number.

It is an amenable number.

8688920 is an abundant number, since it is smaller than the sum of its proper divisors (10861240).

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

8688920 is a wasteful number, since it uses less digits than its factorization.

8688920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217234 (or 217230 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 8688920 is about 2947.6974064513. The cubic root of 8688920 is about 205.5836628502.

The spelling of 8688920 in words is "eight million, six hundred eighty-eight thousand, nine hundred twenty".