79958718 has 128 divisors (see below), whose sum is σ = 224778240. Its totient is φ = 20528640.

The previous prime is 79958717. The next prime is 79958719. The reversal of 79958718 is 81785997.

It is an interprime number because it is at equal distance from previous prime (79958717) and next prime (79958719).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79958717) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147528 + ... + 148068.

It is an arithmetic number, because the mean of its divisors is an integer number (1756080).

Almost surely, 2^79958718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79958718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112389120).

79958718 is an abundant number, since it is smaller than the sum of its proper divisors (144819522).

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

79958718 is a wasteful number, since it uses less digits than its factorization.

79958718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 593 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 54.

The square root of 79958718 is about 8941.9638782540. The cubic root of 79958718 is about 430.8128091101.

The spelling of 79958718 in words is "seventy-nine million, nine hundred fifty-eight thousand, seven hundred eighteen".