976939213 has 2 divisors, whose sum is σ = 976939214. Its totient is φ = 976939212.

The previous prime is 976939199. The next prime is 976939247. The reversal of 976939213 is 312939679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 803042244 + 173896969 = 28338^2 + 13187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-976939213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (976939253) 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, 488469606 + 488469607.

It is an arithmetic number, because the mean of its divisors is an integer number (488469607).

Almost surely, 2^976939213 is an apocalyptic number.

It is an amenable number.

976939213 is a deficient number, since it is larger than the sum of its proper divisors (1).

976939213 is an equidigital number, since it uses as much as digits as its factorization.

976939213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124, while the sum is 49.

The square root of 976939213 is about 31256.0268268377. The cubic root of 976939213 is about 992.2532132638.

The spelling of 976939213 in words is "nine hundred seventy-six million, nine hundred thirty-nine thousand, two hundred thirteen".