79939200 has 192 divisors, whose sum is σ = 287615520. Its totient is φ = 19353600.

The previous prime is 79939199. The next prime is 79939207. The reversal of 79939200 is 293997.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (79939207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105222 + ... + 105978.

Almost surely, 2^79939200 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 79939200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143807760).

79939200 is an abundant number, since it is smaller than the sum of its proper divisors (207676320).

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

79939200 is a wasteful number, since it uses less digits than its factorization.

79939200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 79939200 is about 8940.8724406514. The cubic root of 79939200 is about 430.7777523170. Note that the first 4 decimals are identical.

The spelling of 79939200 in words is "seventy-nine million, nine hundred thirty-nine thousand, two hundred".