82731292 has 12 divisors (see below), whose sum is σ = 165462640. Its totient is φ = 35456256.

The previous prime is 82731247. The next prime is 82731331. The reversal of 82731292 is 29213728.

82731292 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 1477317 + ... + 1477372.

Almost surely, 2^82731292 is an apocalyptic number.

It is an amenable number.

82731292 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

82731292 is a wasteful number, since it uses less digits than its factorization.

82731292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954700 (or 2954698 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 82731292 is about 9095.6743565279. The cubic root of 82731292 is about 435.7358259964.

The spelling of 82731292 in words is "eighty-two million, seven hundred thirty-one thousand, two hundred ninety-two".