976932661 has 2 divisors, whose sum is σ = 976932662. Its totient is φ = 976932660.

The previous prime is 976932643. The next prime is 976932673. The reversal of 976932661 is 166239679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640393636 + 336539025 = 25306^2 + 18345^2 .

It is a cyclic number.

It is not a de Polignac number, because 976932661 - 2¹¹ = 976930613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (976932361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488466330 + 488466331.

It is an arithmetic number, because the mean of its divisors is an integer number (488466331).

Almost surely, 2^976932661 is an apocalyptic number.

It is an amenable number.

976932661 is a deficient number, since it is larger than the sum of its proper divisors (1).

976932661 is an equidigital number, since it uses as much as digits as its factorization.

976932661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 976932661 is about 31255.9220148758. The cubic root of 976932661 is about 992.2509950236.

The spelling of 976932661 in words is "nine hundred seventy-six million, nine hundred thirty-two thousand, six hundred sixty-one".