77393696 has 12 divisors (see below), whose sum is σ = 152368902. Its totient is φ = 38696832.

The previous prime is 77393683. The next prime is 77393713. The reversal of 77393696 is 69639377.

It can be written as a sum of positive squares in only one way, i.e., 64577296 + 12816400 = 8036^2 + 3580^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1209245 + ... + 1209308.

Almost surely, 2^77393696 is an apocalyptic number.

It is an amenable number.

77393696 is a deficient number, since it is larger than the sum of its proper divisors (74975206).

77393696 is a wasteful number, since it uses less digits than its factorization.

77393696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418563 (or 2418555 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 50.

The square root of 77393696 is about 8797.3686975140. The cubic root of 77393696 is about 426.1559231440.

The spelling of 77393696 in words is "seventy-seven million, three hundred ninety-three thousand, six hundred ninety-six".