77343864 has 48 divisors (see below), whose sum is σ = 209388600. Its totient is φ = 23796864.

The previous prime is 77343857. The next prime is 77343869. The reversal of 77343864 is 46834377.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77343869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5479 + ... + 13590.

Almost surely, 2^77343864 is an apocalyptic number.

It is an amenable number.

77343864 is an abundant number, since it is smaller than the sum of its proper divisors (132044736).

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

77343864 is a wasteful number, since it uses less digits than its factorization.

77343864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19104 (or 19087 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The square root of 77343864 is about 8794.5360309683. The cubic root of 77343864 is about 426.0644395455.

The spelling of 77343864 in words is "seventy-seven million, three hundred forty-three thousand, eight hundred sixty-four".