79774880 has 96 divisors (see below), whose sum is σ = 201942720. Its totient is φ = 29675520.

The previous prime is 79774867. The next prime is 79774907. The reversal of 79774880 is 8847797.

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, 377975 + ... + 378185.

It is an arithmetic number, because the mean of its divisors is an integer number (2103570).

Almost surely, 2^79774880 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 79774880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100971360).

79774880 is an abundant number, since it is smaller than the sum of its proper divisors (122167840).

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

79774880 is a wasteful number, since it uses less digits than its factorization.

79774880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 79774880 is about 8931.6784536838. The cubic root of 79774880 is about 430.4823863514.

The spelling of 79774880 in words is "seventy-nine million, seven hundred seventy-four thousand, eight hundred eighty".