76666707 has 24 divisors (see below), whose sum is σ = 120154944. Its totient is φ = 46825344.

The previous prime is 76666703. The next prime is 76666727. The reversal of 76666707 is 70766667.

It is a happy number.

It is not a de Polignac number, because 76666707 - 2² = 76666703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76666703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13638 + ... + 18420.

It is an arithmetic number, because the mean of its divisors is an integer number (5006456).

Almost surely, 2^76666707 is an apocalyptic number.

76666707 is a deficient number, since it is larger than the sum of its proper divisors (43488237).

76666707 is a wasteful number, since it uses less digits than its factorization.

76666707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939 (or 4936 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 76666707 is about 8755.9526609045. The cubic root of 76666707 is about 424.8173738997.

The spelling of 76666707 in words is "seventy-six million, six hundred sixty-six thousand, seven hundred seven".