77683748 has 12 divisors (see below), whose sum is σ = 136071600. Its totient is φ = 38806152.

The previous prime is 77683729. The next prime is 77683751. The reversal of 77683748 is 84738677.

It is a junction number, because it is equal to n+sod(n) for n = 77683696 and 77683705.

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, 3698 + ... + 13001.

It is an arithmetic number, because the mean of its divisors is an integer number (11339300).

Almost surely, 2^77683748 is an apocalyptic number.

It is an amenable number.

77683748 is a deficient number, since it is larger than the sum of its proper divisors (58387852).

77683748 is a wasteful number, since it uses less digits than its factorization.

77683748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17866 (or 17864 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 77683748 is about 8813.8384373665. The cubic root of 77683748 is about 426.6876343320.

The spelling of 77683748 in words is "seventy-seven million, six hundred eighty-three thousand, seven hundred forty-eight".