77922976 has 12 divisors (see below), whose sum is σ = 153410922. Its totient is φ = 38961472.

The previous prime is 77922967. The next prime is 77922991. The reversal of 77922976 is 67922977.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 20466576 = 7580^2 + 4524^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1217515 + ... + 1217578.

Almost surely, 2^77922976 is an apocalyptic number.

It is an amenable number.

77922976 is a deficient number, since it is larger than the sum of its proper divisors (75487946).

77922976 is a wasteful number, since it uses less digits than its factorization.

77922976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435103 (or 2435095 counting only the distinct ones).

The product of its digits is 666792, while the sum is 49.

The square root of 77922976 is about 8827.3991639667. The cubic root of 77922976 is about 427.1251819953.

Subtracting from 77922976 its reverse (67922977), we obtain a palindrome (9999999).

The spelling of 77922976 in words is "seventy-seven million, nine hundred twenty-two thousand, nine hundred seventy-six".