79146564 has 120 divisors (see below), whose sum is σ = 223990368. Its totient is φ = 21732480.

The previous prime is 79146563. The next prime is 79146581. The reversal of 79146564 is 46564197.

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

Its product of digits (181440) is a multiple of the sum of its prime divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79146563) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1181259 + ... + 1181325.

Almost surely, 2^79146564 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 79146564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111995184).

79146564 is an abundant number, since it is smaller than the sum of its proper divisors (144843804).

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

79146564 is a wasteful number, since it uses less digits than its factorization.

79146564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 120 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 79146564 is about 8896.4354659605. The cubic root of 79146564 is about 429.3492301402.

The spelling of 79146564 in words is "seventy-nine million, one hundred forty-six thousand, five hundred sixty-four".