79794720 has 240 divisors, whose sum is σ = 289795968. Its totient is φ = 20666880.

The previous prime is 79794709. The next prime is 79794721. The reversal of 79794720 is 2749797.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (79794721) 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, 609055 + ... + 609185.

Almost surely, 2^79794720 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 79794720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144897984).

79794720 is an abundant number, since it is smaller than the sum of its proper divisors (210001248).

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

79794720 is a wasteful number, since it uses less digits than its factorization.

79794720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 79794720 is about 8932.7890381448. The cubic root of 79794720 is about 430.5180703605.

The spelling of 79794720 in words is "seventy-nine million, seven hundred ninety-four thousand, seven hundred twenty".