79178064 has 80 divisors (see below), whose sum is σ = 237127680. Its totient is φ = 22296960.

The previous prime is 79178053. The next prime is 79178069. The reversal of 79178064 is 46087197.

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 Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79178069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22197 + ... + 25515.

It is an arithmetic number, because the mean of its divisors is an integer number (2964096).

Almost surely, 2^79178064 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 79178064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118563840).

79178064 is an abundant number, since it is smaller than the sum of its proper divisors (157949616).

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

79178064 is a wasteful number, since it uses less digits than its factorization.

79178064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408 (or 3402 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 79178064 is about 8898.2056618174. The cubic root of 79178064 is about 429.4061823153.

The spelling of 79178064 in words is "seventy-nine million, one hundred seventy-eight thousand, sixty-four".