76651397 has 2 divisors, whose sum is σ = 76651398. Its totient is φ = 76651396.

The previous prime is 76651381. The next prime is 76651451. The reversal of 76651397 is 79315667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76020961 + 630436 = 8719^2 + 794^2 .

It is a cyclic number.

It is not a de Polignac number, because 76651397 - 2⁴ = 76651381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76651357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38325698 + 38325699.

It is an arithmetic number, because the mean of its divisors is an integer number (38325699).

Almost surely, 2^76651397 is an apocalyptic number.

It is an amenable number.

76651397 is a deficient number, since it is larger than the sum of its proper divisors (1).

76651397 is an equidigital number, since it uses as much as digits as its factorization.

76651397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 44.

The square root of 76651397 is about 8755.0783548750. The cubic root of 76651397 is about 424.7890939712.

The spelling of 76651397 in words is "seventy-six million, six hundred fifty-one thousand, three hundred ninety-seven".