83660672 has 32 divisors (see below), whose sum is σ = 176476320. Its totient is φ = 39368704.

The previous prime is 83660627. The next prime is 83660693. The reversal of 83660672 is 27606638.

It is a tau number, because it is divible by the number of its divisors (32).

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, 17048 + ... + 21399.

It is an arithmetic number, because the mean of its divisors is an integer number (5514885).

Almost surely, 2^83660672 is an apocalyptic number.

It is an amenable number.

83660672 is an abundant number, since it is smaller than the sum of its proper divisors (92815648).

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

83660672 is a wasteful number, since it uses less digits than its factorization.

83660672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38478 (or 38466 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 83660672 is about 9146.6207967752. The cubic root of 83660672 is about 437.3613984898.

The spelling of 83660672 in words is "eighty-three million, six hundred sixty thousand, six hundred seventy-two".