79500720 has 160 divisors (see below), whose sum is σ = 269482752. Its totient is φ = 19270656.

The previous prime is 79500697. The next prime is 79500737. The reversal of 79500720 is 2700597.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 258807 + ... + 259113.

Almost surely, 2^79500720 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 79500720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134741376).

79500720 is an abundant number, since it is smaller than the sum of its proper divisors (189982032).

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

79500720 is a wasteful number, since it uses less digits than its factorization.

79500720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 79500720 is about 8916.3176255672. The cubic root of 79500720 is about 429.9886782669.

The spelling of 79500720 in words is "seventy-nine million, five hundred thousand, seven hundred twenty".