79173120 has 240 divisors, whose sum is σ = 278566992. Its totient is φ = 19169280.

The previous prime is 79173109. The next prime is 79173121. The reversal of 79173120 is 2137197.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79173121) 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, 1297890 + ... + 1297950.

Almost surely, 2^79173120 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 79173120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139283496).

79173120 is an abundant number, since it is smaller than the sum of its proper divisors (199393872).

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

79173120 is a wasteful number, since it uses less digits than its factorization.

79173120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 79173120 is about 8897.9278486623. The cubic root of 79173120 is about 429.3972445353.

The spelling of 79173120 in words is "seventy-nine million, one hundred seventy-three thousand, one hundred twenty".