920009688 has 64 divisors (see below), whose sum is σ = 2562386400. Its totient is φ = 273315840.

The previous prime is 920009677. The next prime is 920009737. The reversal of 920009688 is 886900029.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41793 + ... + 59888.

Almost surely, 2^920009688 is an apocalyptic number.

It is an amenable number.

920009688 is an abundant number, since it is smaller than the sum of its proper divisors (1642376712).

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

920009688 is a wasteful number, since it uses less digits than its factorization.

920009688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101732 (or 101728 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 920009688 is about 30331.6614777364. The cubic root of 920009688 is about 972.5922401346.

The spelling of 920009688 in words is "nine hundred twenty million, nine thousand, six hundred eighty-eight".