79790928 has 160 divisors (see below), whose sum is σ = 254626560. Its totient is φ = 21012480.

The previous prime is 79790927. The next prime is 79790941. The reversal of 79790928 is 82909797.

It is a happy number.

It is a super-2 number, since 2×79790928² = 12733184382202368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79790927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 348318 + ... + 348546.

It is an arithmetic number, because the mean of its divisors is an integer number (1591416).

Almost surely, 2^79790928 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 79790928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127313280).

79790928 is an abundant number, since it is smaller than the sum of its proper divisors (174835632).

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

79790928 is a wasteful number, since it uses less digits than its factorization.

79790928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 79790928 is about 8932.5767838849. The cubic root of 79790928 is about 430.5112505676.

The spelling of 79790928 in words is "seventy-nine million, seven hundred ninety thousand, nine hundred twenty-eight".