82657080 has 96 divisors (see below), whose sum is σ = 293070960. Its totient is φ = 20037120.

The previous prime is 82657079. The next prime is 82657121. The reversal of 82657080 is 8075628.

82657080 is a `hidden beast` number, since 8 + 2 + 6 + 570 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6477 + ... + 14396.

Almost surely, 2^82657080 is an apocalyptic number.

It is an amenable number.

82657080 is an abundant number, since it is smaller than the sum of its proper divisors (210413880).

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

82657080 is a wasteful number, since it uses less digits than its factorization.

82657080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20901 (or 20894 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 82657080 is about 9091.5939196601. The cubic root of 82657080 is about 435.6054984419.

The spelling of 82657080 in words is "eighty-two million, six hundred fifty-seven thousand, eighty".