82757020 has 24 divisors (see below), whose sum is σ = 184013424. Its totient is φ = 31155456.

The previous prime is 82756957. The next prime is 82757033. The reversal of 82757020 is 2075728.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121362 + ... + 122041.

It is an arithmetic number, because the mean of its divisors is an integer number (7667226).

Almost surely, 2^82757020 is an apocalyptic number.

It is an amenable number.

82757020 is an abundant number, since it is smaller than the sum of its proper divisors (101256404).

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

82757020 is a wasteful number, since it uses less digits than its factorization.

82757020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243429 (or 243427 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 82757020 is about 9097.0885452435. The cubic root of 82757020 is about 435.7809900819.

The spelling of 82757020 in words is "eighty-two million, seven hundred fifty-seven thousand, twenty".