78655464 has 96 divisors (see below), whose sum is σ = 227448000. Its totient is φ = 24470016.

The previous prime is 78655439. The next prime is 78655477. The reversal of 78655464 is 46455687.

Its product of digits (806400) is a multiple of the sum of its prime divisors (560).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218917 + ... + 219275.

It is an arithmetic number, because the mean of its divisors is an integer number (2369250).

Almost surely, 2^78655464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78655464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113724000).

78655464 is an abundant number, since it is smaller than the sum of its proper divisors (148792536).

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

78655464 is a wasteful number, since it uses less digits than its factorization.

78655464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 560 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 78655464 is about 8868.7915749554. The cubic root of 78655464 is about 428.4593577438.

The spelling of 78655464 in words is "seventy-eight million, six hundred fifty-five thousand, four hundred sixty-four".