82976660 has 48 divisors (see below), whose sum is σ = 198704016. Its totient is φ = 28833792.

The previous prime is 82976657. The next prime is 82976689. The reversal of 82976660 is 6667928.

It can be written as a sum of positive squares in 8 ways, for example, as 5466244 + 77510416 = 2338^2 + 8804^2 .

It is a super-2 number, since 2×82976660² = 13770252209511200, which contains 22 as substring.

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, 4967 + ... + 13806.

It is an arithmetic number, because the mean of its divisors is an integer number (4139667).

Almost surely, 2^82976660 is an apocalyptic number.

It is an amenable number.

82976660 is an abundant number, since it is smaller than the sum of its proper divisors (115727356).

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

82976660 is a wasteful number, since it uses less digits than its factorization.

82976660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18812 (or 18810 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 82976660 is about 9109.1525401653. The cubic root of 82976660 is about 436.1661754691.

The spelling of 82976660 in words is "eighty-two million, nine hundred seventy-six thousand, six hundred sixty".