79808742 has 24 divisors (see below), whose sum is σ = 186220944. Its totient is φ = 24556464.

The previous prime is 79808719. The next prime is 79808747. The reversal of 79808742 is 24780897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79808747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170298 + ... + 170765.

It is an arithmetic number, because the mean of its divisors is an integer number (7759206).

Almost surely, 2^79808742 is an apocalyptic number.

79808742 is an abundant number, since it is smaller than the sum of its proper divisors (106412202).

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

79808742 is a wasteful number, since it uses less digits than its factorization.

79808742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341084 (or 341081 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 79808742 is about 8933.5738649210. The cubic root of 79808742 is about 430.5432866104.

The spelling of 79808742 in words is "seventy-nine million, eight hundred eight thousand, seven hundred forty-two".