79858728 has 96 divisors (see below), whose sum is σ = 229532160. Its totient is φ = 25038720.

The previous prime is 79858679. The next prime is 79858771. The reversal of 79858728 is 82785897.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82101 + ... + 83067.

It is an arithmetic number, because the mean of its divisors is an integer number (2390960).

Almost surely, 2^79858728 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 79858728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114766080).

79858728 is an abundant number, since it is smaller than the sum of its proper divisors (149673432).

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

79858728 is a wasteful number, since it uses less digits than its factorization.

79858728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1040 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 79858728 is about 8936.3710755541. The cubic root of 79858728 is about 430.6331541475.

It can be divided in two parts, 7 and 9858728, that multiplied together give a palindrome (69011096).

The spelling of 79858728 in words is "seventy-nine million, eight hundred fifty-eight thousand, seven hundred twenty-eight".