77926768 has 20 divisors (see below), whose sum is σ = 153460168. Its totient is φ = 38324160.

The previous prime is 77926763. The next prime is 77926789. The reversal of 77926768 is 86762977.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77926763) 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, 38946 + ... + 40897.

Almost surely, 2^77926768 is an apocalyptic number.

It is an amenable number.

77926768 is a deficient number, since it is larger than the sum of its proper divisors (75533400).

77926768 is a wasteful number, since it uses less digits than its factorization.

77926768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79912 (or 79906 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 52.

The square root of 77926768 is about 8827.6139471547. The cubic root of 77926768 is about 427.1321103431.

The spelling of 77926768 in words is "seventy-seven million, nine hundred twenty-six thousand, seven hundred sixty-eight".