83920512 has 64 divisors (see below), whose sum is σ = 240075360. Its totient is φ = 25820160.

The previous prime is 83920493. The next prime is 83920541. The reversal of 83920512 is 21502938.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 83920512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3414 + ... + 13397.

Almost surely, 2^83920512 is an apocalyptic number.

It is an amenable number.

83920512 is an abundant number, since it is smaller than the sum of its proper divisors (156154848).

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

83920512 is a wasteful number, since it uses less digits than its factorization.

83920512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16841 (or 16829 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 83920512 is about 9160.8139376368. The cubic root of 83920512 is about 437.8137278452.

The spelling of 83920512 in words is "eighty-three million, nine hundred twenty thousand, five hundred twelve".