79299990 has 96 divisors (see below), whose sum is σ = 257078016. Its totient is φ = 16476480.

The previous prime is 79299959. The next prime is 79300003. The reversal of 79299990 is 9999297.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1209 + ... + 12651.

It is an arithmetic number, because the mean of its divisors is an integer number (2677896).

Almost surely, 2^79299990 is an apocalyptic number.

79299990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 79299990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128539008).

79299990 is an abundant number, since it is smaller than the sum of its proper divisors (177778026).

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

79299990 is a wasteful number, since it uses less digits than its factorization.

79299990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11474 (or 11471 counting only the distinct ones).

The product of its (nonzero) digits is 826686, while the sum is 54.

The square root of 79299990 is about 8905.0541828784. The cubic root of 79299990 is about 429.6264829237.

The spelling of 79299990 in words is "seventy-nine million, two hundred ninety-nine thousand, nine hundred ninety".