79904880 has 400 divisors, whose sum is σ = 324086400. Its totient is φ = 18040320.

The previous prime is 79904863. The next prime is 79904893. The reversal of 79904880 is 8840997.

79904880 = T₁₃₅ + T₁₃₆ + ... + T₇₈₃.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1354291 + ... + 1354349.

It is an arithmetic number, because the mean of its divisors is an integer number (810216).

Almost surely, 2^79904880 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 79904880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162043200).

79904880 is an abundant number, since it is smaller than the sum of its proper divisors (244181520).

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

79904880 is a wasteful number, since it uses less digits than its factorization.

79904880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 79904880 is about 8938.9529588202. The cubic root of 79904880 is about 430.7160954214.

The spelling of 79904880 in words is "seventy-nine million, nine hundred four thousand, eight hundred eighty".