77993376 has 24 divisors (see below), whose sum is σ = 204732864. Its totient is φ = 25997760.

The previous prime is 77993359. The next prime is 77993387. The reversal of 77993376 is 67339977.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406120 + ... + 406311.

It is an arithmetic number, because the mean of its divisors is an integer number (8530536).

Almost surely, 2^77993376 is an apocalyptic number.

It is an amenable number.

77993376 is an abundant number, since it is smaller than the sum of its proper divisors (126739488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77993376 is a wasteful number, since it uses less digits than its factorization.

77993376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812444 (or 812436 counting only the distinct ones).

The product of its digits is 1500282, while the sum is 51.

The square root of 77993376 is about 8831.3858482120. The cubic root of 77993376 is about 427.2537729167.

It can be divided in two parts, 7799 and 3376, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 77993376 in words is "seventy-seven million, nine hundred ninety-three thousand, three hundred seventy-six".