79749456 has 20 divisors (see below), whose sum is σ = 206019552. Its totient is φ = 26583136.

The previous prime is 79749437. The next prime is 79749491. The reversal of 79749456 is 65494797.

It is a junction number, because it is equal to n+sod(n) for n = 79749399 and 79749408.

It is a congruent number.

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, 830676 + ... + 830771.

Almost surely, 2^79749456 is an apocalyptic number.

It is an amenable number.

79749456 is an abundant number, since it is smaller than the sum of its proper divisors (126270096).

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

79749456 is a wasteful number, since it uses less digits than its factorization.

79749456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661458 (or 1661452 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 79749456 is about 8930.2550915413. The cubic root of 79749456 is about 430.4366503710.

The spelling of 79749456 in words is "seventy-nine million, seven hundred forty-nine thousand, four hundred fifty-six".