77344404 has 24 divisors (see below), whose sum is σ = 180612768. Its totient is φ = 25761120.

The previous prime is 77344387. The next prime is 77344417. The reversal of 77344404 is 40444377.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27219 + ... + 29925.

It is an arithmetic number, because the mean of its divisors is an integer number (7525532).

Almost surely, 2^77344404 is an apocalyptic number.

It is an amenable number.

77344404 is an abundant number, since it is smaller than the sum of its proper divisors (103268364).

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

77344404 is a wasteful number, since it uses less digits than its factorization.

77344404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5095 (or 5093 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 77344404 is about 8794.5667317953. The cubic root of 77344404 is about 426.0654311099.

The spelling of 77344404 in words is "seventy-seven million, three hundred forty-four thousand, four hundred four".