82715790 has 16 divisors (see below), whose sum is σ = 198517968. Its totient is φ = 22057536.

The previous prime is 82715777. The next prime is 82715807. The reversal of 82715790 is 9751728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378567 + ... + 1378626.

It is an arithmetic number, because the mean of its divisors is an integer number (12407373).

Almost surely, 2^82715790 is an apocalyptic number.

82715790 is an abundant number, since it is smaller than the sum of its proper divisors (115802178).

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

82715790 is a wasteful number, since it uses less digits than its factorization.

82715790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757203.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 82715790 is about 9094.8221532914. The cubic root of 82715790 is about 435.7086085694.

The spelling of 82715790 in words is "eighty-two million, seven hundred fifteen thousand, seven hundred ninety".