79744992 has 24 divisors (see below), whose sum is σ = 209330856. Its totient is φ = 26581632.

The previous prime is 79744991. The next prime is 79745021. The reversal of 79744992 is 29944797.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79744991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415243 + ... + 415434.

It is an arithmetic number, because the mean of its divisors is an integer number (8722119).

Almost surely, 2^79744992 is an apocalyptic number.

It is an amenable number.

79744992 is an abundant number, since it is smaller than the sum of its proper divisors (129585864).

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

79744992 is a wasteful number, since it uses less digits than its factorization.

79744992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830690 (or 830682 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 79744992 is about 8930.0051511743. The cubic root of 79744992 is about 430.4286189471.

The spelling of 79744992 in words is "seventy-nine million, seven hundred forty-four thousand, nine hundred ninety-two".