79925856 has 96 divisors (see below), whose sum is σ = 228614400. Its totient is φ = 24353280.

The previous prime is 79925849. The next prime is 79925869. The reversal of 79925856 is 65852997.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 79925799 and 79925808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52141 + ... + 53651.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^79925856 is an apocalyptic number.

79925856 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79925856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114307200).

79925856 is an abundant number, since it is smaller than the sum of its proper divisors (148688544).

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

79925856 is a wasteful number, since it uses less digits than its factorization.

79925856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1564 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 79925856 is about 8940.1261736063. The cubic root of 79925856 is about 430.7537815234.

The spelling of 79925856 in words is "seventy-nine million, nine hundred twenty-five thousand, eight hundred fifty-six".