82497992 has 8 divisors (see below), whose sum is σ = 154683750. Its totient is φ = 41248992.

The previous prime is 82497949. The next prime is 82498001. The reversal of 82497992 is 29979428.

It can be written as a sum of positive squares in only one way, i.e., 78393316 + 4104676 = 8854^2 + 2026^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 82497992.

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 as a sum of consecutive naturals, namely, 5156117 + ... + 5156132.

Almost surely, 2^82497992 is an apocalyptic number.

It is an amenable number.

82497992 is a deficient number, since it is larger than the sum of its proper divisors (72185758).

82497992 is a wasteful number, since it uses less digits than its factorization.

82497992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10312255 (or 10312251 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 82497992 is about 9082.8405248578. The cubic root of 82497992 is about 435.3258526456.

The spelling of 82497992 in words is "eighty-two million, four hundred ninety-seven thousand, nine hundred ninety-two".