79109456 has 10 divisors (see below), whose sum is σ = 153274602. Its totient is φ = 39554720.

The previous prime is 79109453. The next prime is 79109461. The reversal of 79109456 is 65490197.

It can be written as a sum of positive squares in only one way, i.e., 43349056 + 35760400 = 6584^2 + 5980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79109453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2472155 + ... + 2472186.

Almost surely, 2^79109456 is an apocalyptic number.

It is an amenable number.

79109456 is a deficient number, since it is larger than the sum of its proper divisors (74165146).

79109456 is a wasteful number, since it uses less digits than its factorization.

79109456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944349 (or 4944343 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 79109456 is about 8894.3496670639. The cubic root of 79109456 is about 429.2821192806.

The spelling of 79109456 in words is "seventy-nine million, one hundred nine thousand, four hundred fifty-six".