77456464 has 20 divisors (see below), whose sum is σ = 157971040. Its totient is φ = 36689760.

The previous prime is 77456453. The next prime is 77456531. The reversal of 77456464 is 46465477.

It is a self number, because there is not a number n which added to its sum of digits gives 77456464.

It is a congruent number.

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, 127092 + ... + 127699.

It is an arithmetic number, because the mean of its divisors is an integer number (7898552).

Almost surely, 2^77456464 is an apocalyptic number.

It is an amenable number.

77456464 is an abundant number, since it is smaller than the sum of its proper divisors (80514576).

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

77456464 is a wasteful number, since it uses less digits than its factorization.

77456464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254818 (or 254812 counting only the distinct ones).

The product of its digits is 564480, while the sum is 43.

The square root of 77456464 is about 8800.9354048306. The cubic root of 77456464 is about 426.2710993073.

The spelling of 77456464 in words is "seventy-seven million, four hundred fifty-six thousand, four hundred sixty-four".