79745936 has 20 divisors (see below), whose sum is σ = 155156364. Its totient is φ = 39705600.

The previous prime is 79745903. The next prime is 79745947. The reversal of 79745936 is 63954797.

It can be written as a sum of positive squares in 2 ways, for example, as 31360000 + 48385936 = 5600^2 + 6956^2 .

It is a super-3 number, since 3×79745936³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6485 + ... + 14196.

Almost surely, 2^79745936 is an apocalyptic number.

It is an amenable number.

79745936 is a deficient number, since it is larger than the sum of its proper divisors (75410428).

79745936 is a wasteful number, since it uses less digits than its factorization.

79745936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20930 (or 20924 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 50.

The square root of 79745936 is about 8930.0580065305. The cubic root of 79745936 is about 430.4303173735.

The spelling of 79745936 in words is "seventy-nine million, seven hundred forty-five thousand, nine hundred thirty-six".