77713868 has 12 divisors (see below), whose sum is σ = 143999352. Its totient is φ = 36571200.

The previous prime is 77713861. The next prime is 77713871. The reversal of 77713868 is 86831777.

It is not an unprimeable number, because it can be changed into a prime (77713861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571358 + ... + 571493.

It is an arithmetic number, because the mean of its divisors is an integer number (11999946).

Almost surely, 2^77713868 is an apocalyptic number.

It is an amenable number.

77713868 is a deficient number, since it is larger than the sum of its proper divisors (66285484).

77713868 is a wasteful number, since it uses less digits than its factorization.

77713868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142872 (or 1142870 counting only the distinct ones).

The product of its digits is 395136, while the sum is 47.

The square root of 77713868 is about 8815.5469484315. The cubic root of 77713868 is about 426.7427731533.

The spelling of 77713868 in words is "seventy-seven million, seven hundred thirteen thousand, eight hundred sixty-eight".