82170852 has 48 divisors (see below), whose sum is σ = 198132480. Its totient is φ = 26490112.

The previous prime is 82170841. The next prime is 82170871. The reversal of 82170852 is 25807128.

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, 49378 + ... + 51014.

It is an arithmetic number, because the mean of its divisors is an integer number (4127760).

Almost surely, 2^82170852 is an apocalyptic number.

It is an amenable number.

82170852 is an abundant number, since it is smaller than the sum of its proper divisors (115961628).

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

82170852 is a wasteful number, since it uses less digits than its factorization.

82170852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780 (or 1778 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 82170852 is about 9064.8139528619. The cubic root of 82170852 is about 434.7496723288.

The spelling of 82170852 in words is "eighty-two million, one hundred seventy thousand, eight hundred fifty-two".