79637748 has 12 divisors (see below), whose sum is σ = 185821440. Its totient is φ = 26545912.

The previous prime is 79637743. The next prime is 79637749. The reversal of 79637748 is 84773697.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 79637748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79637743) 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, 3318228 + ... + 3318251.

It is an arithmetic number, because the mean of its divisors is an integer number (15485120).

Almost surely, 2^79637748 is an apocalyptic number.

It is an amenable number.

79637748 is an abundant number, since it is smaller than the sum of its proper divisors (106183692).

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

79637748 is a wasteful number, since it uses less digits than its factorization.

79637748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636486 (or 6636484 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 51.

The square root of 79637748 is about 8923.9984311966. The cubic root of 79637748 is about 430.2355803036.

The spelling of 79637748 in words is "seventy-nine million, six hundred thirty-seven thousand, seven hundred forty-eight".