76974665 has 4 divisors (see below), whose sum is σ = 92369604. Its totient is φ = 61579728.

The previous prime is 76974659. The next prime is 76974697. The reversal of 76974665 is 56647967.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36385024 + 40589641 = 6032^2 + 6371^2 .

It is a cyclic number.

It is not a de Polignac number, because 76974665 - 2¹⁴ = 76958281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7697462 + ... + 7697471.

It is an arithmetic number, because the mean of its divisors is an integer number (23092401).

Almost surely, 2^76974665 is an apocalyptic number.

It is an amenable number.

76974665 is a deficient number, since it is larger than the sum of its proper divisors (15394939).

76974665 is a wasteful number, since it uses less digits than its factorization.

76974665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15394938.

The product of its digits is 1905120, while the sum is 50.

The square root of 76974665 is about 8773.5206730252. The cubic root of 76974665 is about 425.3854219910.

The spelling of 76974665 in words is "seventy-six million, nine hundred seventy-four thousand, six hundred sixty-five".