83979056 has 40 divisors (see below), whose sum is σ = 186726144. Its totient is φ = 35841600.

The previous prime is 83979047. The next prime is 83979059. The reversal of 83979056 is 65097938.

It is a super-2 number, since 2×83979056² = 14104963693302272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83979056.

It is not an unprimeable number, because it can be changed into a prime (83979059) 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, 28031 + ... + 30881.

Almost surely, 2^83979056 is an apocalyptic number.

It is an amenable number.

83979056 is an abundant number, since it is smaller than the sum of its proper divisors (102747088).

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

83979056 is a wasteful number, since it uses less digits than its factorization.

83979056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 83979056 is about 9164.0087298082. The cubic root of 83979056 is about 437.9155122931.

The spelling of 83979056 in words is "eighty-three million, nine hundred seventy-nine thousand, fifty-six".