76679321 has 2 divisors, whose sum is σ = 76679322. Its totient is φ = 76679320.

The previous prime is 76679293. The next prime is 76679329. The reversal of 76679321 is 12397667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71639296 + 5040025 = 8464^2 + 2245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76679321 is a prime.

It is not a weakly prime, because it can be changed into another prime (76679329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38339660 + 38339661.

It is an arithmetic number, because the mean of its divisors is an integer number (38339661).

Almost surely, 2^76679321 is an apocalyptic number.

It is an amenable number.

76679321 is a deficient number, since it is larger than the sum of its proper divisors (1).

76679321 is an equidigital number, since it uses as much as digits as its factorization.

76679321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 41.

The square root of 76679321 is about 8756.6729412489. The cubic root of 76679321 is about 424.8406710722.

The spelling of 76679321 in words is "seventy-six million, six hundred seventy-nine thousand, three hundred twenty-one".