79729328 has 40 divisors (see below), whose sum is σ = 178798080. Its totient is φ = 33733440.

The previous prime is 79729319. The next prime is 79729361. The reversal of 79729328 is 82392797.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4343 + ... + 13353.

It is an arithmetic number, because the mean of its divisors is an integer number (4469952).

Almost surely, 2^79729328 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 79729328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89399040).

79729328 is an abundant number, since it is smaller than the sum of its proper divisors (99068752).

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

79729328 is a wasteful number, since it uses less digits than its factorization.

79729328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9105 (or 9099 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 79729328 is about 8929.1280649344. The cubic root of 79729328 is about 430.4004346259.

The spelling of 79729328 in words is "seventy-nine million, seven hundred twenty-nine thousand, three hundred twenty-eight".