76304689 has 2 divisors, whose sum is σ = 76304690. Its totient is φ = 76304688.

The previous prime is 76304681. The next prime is 76304737. The reversal of 76304689 is 98640367.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38850289 + 37454400 = 6233^2 + 6120^2 .

It is a cyclic number.

It is not a de Polignac number, because 76304689 - 2³ = 76304681 is a prime.

It is not a weakly prime, because it can be changed into another prime (76304681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38152344 + 38152345.

It is an arithmetic number, because the mean of its divisors is an integer number (38152345).

Almost surely, 2^76304689 is an apocalyptic number.

It is an amenable number.

76304689 is a deficient number, since it is larger than the sum of its proper divisors (1).

76304689 is an equidigital number, since it uses as much as digits as its factorization.

76304689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 76304689 is about 8735.2555200177. The cubic root of 76304689 is about 424.1476601673.

The spelling of 76304689 in words is "seventy-six million, three hundred four thousand, six hundred eighty-nine".