82570660 has 12 divisors (see below), whose sum is σ = 173398428. Its totient is φ = 33028256.

The previous prime is 82570633. The next prime is 82570673. The reversal of 82570660 is 6607528.

It can be written as a sum of positive squares in 2 ways, for example, as 12446784 + 70123876 = 3528^2 + 8374^2 .

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, 2064247 + ... + 2064286.

It is an arithmetic number, because the mean of its divisors is an integer number (14449869).

Almost surely, 2^82570660 is an apocalyptic number.

It is an amenable number.

82570660 is an abundant number, since it is smaller than the sum of its proper divisors (90827768).

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

82570660 is a wasteful number, since it uses less digits than its factorization.

82570660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128542 (or 4128540 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 82570660 is about 9086.8399347628. The cubic root of 82570660 is about 435.4536334337.

The spelling of 82570660 in words is "eighty-two million, five hundred seventy thousand, six hundred sixty".