976994647 has 2 divisors, whose sum is σ = 976994648. Its totient is φ = 976994646.

The previous prime is 976994609. The next prime is 976994653. The reversal of 976994647 is 746499679.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 976994647 - 2²⁷ = 842776919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (976994677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488497323 + 488497324.

It is an arithmetic number, because the mean of its divisors is an integer number (488497324).

Almost surely, 2^976994647 is an apocalyptic number.

976994647 is a deficient number, since it is larger than the sum of its proper divisors (1).

976994647 is an equidigital number, since it uses as much as digits as its factorization.

976994647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20575296, while the sum is 61.

The square root of 976994647 is about 31256.9135872370. The cubic root of 976994647 is about 992.2719805605.

The spelling of 976994647 in words is "nine hundred seventy-six million, nine hundred ninety-four thousand, six hundred forty-seven".