82939570 has 64 divisors (see below), whose sum is σ = 181057536. Its totient is φ = 26749440.

The previous prime is 82939547. The next prime is 82939589. The reversal of 82939570 is 7593928.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79774 + ... + 80806.

It is an arithmetic number, because the mean of its divisors is an integer number (2829024).

Almost surely, 2^82939570 is an apocalyptic number.

82939570 is an abundant number, since it is smaller than the sum of its proper divisors (98117966).

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

82939570 is a wasteful number, since it uses less digits than its factorization.

82939570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 82939570 is about 9107.1164481410. The cubic root of 82939570 is about 436.1011780170.

The spelling of 82939570 in words is "eighty-two million, nine hundred thirty-nine thousand, five hundred seventy".