79994880 has 336 divisors, whose sum is σ = 327135744. Its totient is φ = 17694720.

The previous prime is 79994879. The next prime is 79994899. The reversal of 79994880 is 8849997.

79994880 is a `hidden beast` number, since 79 + 99 + 488 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

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, 2580465 + ... + 2580495.

Almost surely, 2^79994880 is an apocalyptic number.

79994880 is a gapful number since it is divisible by the number (70) 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 79994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163567872).

79994880 is an abundant number, since it is smaller than the sum of its proper divisors (247140864).

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

79994880 is a wasteful number, since it uses less digits than its factorization.

79994880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 79994880 is about 8943.9856887184. The cubic root of 79994880 is about 430.8777455556.

The spelling of 79994880 in words is "seventy-nine million, nine hundred ninety-four thousand, eight hundred eighty".