79797748 has 12 divisors (see below), whose sum is σ = 139710340. Its totient is φ = 39880512.

The previous prime is 79797721. The next prime is 79797749. The reversal of 79797748 is 84779797.

It can be written as a sum of positive squares in 2 ways, for example, as 33039504 + 46758244 = 5748^2 + 6838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 79797692 and 79797701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79797749) 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, 11290 + ... + 16942.

Almost surely, 2^79797748 is an apocalyptic number.

It is an amenable number.

79797748 is a deficient number, since it is larger than the sum of its proper divisors (59912592).

79797748 is a wasteful number, since it uses less digits than its factorization.

79797748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186 (or 9184 counting only the distinct ones).

The product of its digits is 6223392, while the sum is 58.

The square root of 79797748 is about 8932.9585244755. The cubic root of 79797748 is about 430.5235159682.

The spelling of 79797748 in words is "seventy-nine million, seven hundred ninety-seven thousand, seven hundred forty-eight".