82640524 has 12 divisors (see below), whose sum is σ = 144706744. Its totient is φ = 41295744.

The previous prime is 82640507. The next prime is 82640531. The reversal of 82640524 is 42504628.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947 + ... + 13189.

Almost surely, 2^82640524 is an apocalyptic number.

It is an amenable number.

82640524 is a deficient number, since it is larger than the sum of its proper divisors (62066220).

82640524 is a wasteful number, since it uses less digits than its factorization.

82640524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12264 (or 12262 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 82640524 is about 9090.6833626521. The cubic root of 82640524 is about 435.5764129472.

The spelling of 82640524 in words is "eighty-two million, six hundred forty thousand, five hundred twenty-four".