76977776 has 10 divisors (see below), whose sum is σ = 149144472. Its totient is φ = 38488880.

The previous prime is 76977773. The next prime is 76977779. The reversal of 76977776 is 67777967.

It is an interprime number because it is at equal distance from previous prime (76977773) and next prime (76977779).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76977773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2405540 + ... + 2405571.

Almost surely, 2^76977776 is an apocalyptic number.

It is an amenable number.

76977776 is a deficient number, since it is larger than the sum of its proper divisors (72166696).

76977776 is a wasteful number, since it uses less digits than its factorization.

76977776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811119 (or 4811113 counting only the distinct ones).

The product of its digits is 5445468, while the sum is 56.

The square root of 76977776 is about 8773.6979660802. The cubic root of 76977776 is about 425.3911526913.

The spelling of 76977776 in words is "seventy-six million, nine hundred seventy-seven thousand, seven hundred seventy-six".