83765856 has 24 divisors (see below), whose sum is σ = 219885624. Its totient is φ = 27921920.

The previous prime is 83765827. The next prime is 83765861. The reversal of 83765856 is 65856738.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436185 + ... + 436376.

It is an arithmetic number, because the mean of its divisors is an integer number (9161901).

Almost surely, 2^83765856 is an apocalyptic number.

It is an amenable number.

83765856 is an abundant number, since it is smaller than the sum of its proper divisors (136119768).

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

83765856 is a wasteful number, since it uses less digits than its factorization.

83765856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872574 (or 872566 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 83765856 is about 9152.3688736851. The cubic root of 83765856 is about 437.5446154228.

The spelling of 83765856 in words is "eighty-three million, seven hundred sixty-five thousand, eight hundred fifty-six".