76664351 has 2 divisors, whose sum is σ = 76664352. Its totient is φ = 76664350.

The previous prime is 76664321. The next prime is 76664363. The reversal of 76664351 is 15346667.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76664351 - 2²⁶ = 9555487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76664311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38332175 + 38332176.

It is an arithmetic number, because the mean of its divisors is an integer number (38332176).

Almost surely, 2^76664351 is an apocalyptic number.

76664351 is a deficient number, since it is larger than the sum of its proper divisors (1).

76664351 is an equidigital number, since it uses as much as digits as its factorization.

76664351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 76664351 is about 8755.8181228255. The cubic root of 76664351 is about 424.8130222499.

The spelling of 76664351 in words is "seventy-six million, six hundred sixty-four thousand, three hundred fifty-one".