76799966 has 4 divisors (see below), whose sum is σ = 115199952. Its totient is φ = 38399982.

The previous prime is 76799963. The next prime is 76799971. The reversal of 76799966 is 66999767.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76799963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19199990 + ... + 19199993.

It is an arithmetic number, because the mean of its divisors is an integer number (28799988).

Almost surely, 2^76799966 is an apocalyptic number.

76799966 is a deficient number, since it is larger than the sum of its proper divisors (38399986).

76799966 is a wasteful number, since it uses less digits than its factorization.

76799966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38399985.

The product of its digits is 7715736, while the sum is 59.

The square root of 76799966 is about 8763.5589802317. The cubic root of 76799966 is about 425.0633649467.

The spelling of 76799966 in words is "seventy-six million, seven hundred ninety-nine thousand, nine hundred sixty-six".