82976661 has 12 divisors (see below), whose sum is σ = 122779020. Its totient is φ = 53968320.

The previous prime is 82976657. The next prime is 82976689. The reversal of 82976661 is 16667928.

It can be written as a sum of positive squares in 2 ways, for example, as 39614436 + 43362225 = 6294^2 + 6585^2 .

It is not a de Polignac number, because 82976661 - 2² = 82976657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82975661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112066 + ... + 112803.

It is an arithmetic number, because the mean of its divisors is an integer number (10231585).

Almost surely, 2^82976661 is an apocalyptic number.

It is an amenable number.

82976661 is a deficient number, since it is larger than the sum of its proper divisors (39802359).

82976661 is a wasteful number, since it uses less digits than its factorization.

82976661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224916 (or 224913 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 82976661 is about 9109.1525950552. The cubic root of 82976661 is about 436.1661772213.

The spelling of 82976661 in words is "eighty-two million, nine hundred seventy-six thousand, six hundred sixty-one".