76690837 has 2 divisors, whose sum is σ = 76690838. Its totient is φ = 76690836.

The previous prime is 76690781. The next prime is 76690843. The reversal of 76690837 is 73809667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53129521 + 23561316 = 7289^2 + 4854^2 .

It is a cyclic number.

It is not a de Polignac number, because 76690837 - 2⁷ = 76690709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76690037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38345418 + 38345419.

It is an arithmetic number, because the mean of its divisors is an integer number (38345419).

Almost surely, 2^76690837 is an apocalyptic number.

It is an amenable number.

76690837 is a deficient number, since it is larger than the sum of its proper divisors (1).

76690837 is an equidigital number, since it uses as much as digits as its factorization.

76690837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 76690837 is about 8757.3304722387. The cubic root of 76690837 is about 424.8619380849.

The spelling of 76690837 in words is "seventy-six million, six hundred ninety thousand, eight hundred thirty-seven".