78745464 has 48 divisors (see below), whose sum is σ = 243737520. Its totient is φ = 22498560.

The previous prime is 78745453. The next prime is 78745483. The reversal of 78745464 is 46454787.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77617 + ... + 78624.

It is an arithmetic number, because the mean of its divisors is an integer number (5077865).

Almost surely, 2^78745464 is an apocalyptic number.

It is an amenable number.

78745464 is an abundant number, since it is smaller than the sum of its proper divisors (164992056).

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

78745464 is a wasteful number, since it uses less digits than its factorization.

78745464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156260 (or 156253 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 78745464 is about 8873.8640963224. The cubic root of 78745464 is about 428.6227142435.

The spelling of 78745464 in words is "seventy-eight million, seven hundred forty-five thousand, four hundred sixty-four".