79491456 has 320 divisors, whose sum is σ = 279916560. Its totient is φ = 22118400.

The previous prime is 79491443. The next prime is 79491457. The reversal of 79491456 is 65419497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79491457) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1938796 + ... + 1938836.

Almost surely, 2^79491456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79491456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139958280).

79491456 is an abundant number, since it is smaller than the sum of its proper divisors (200425104).

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

79491456 is a wasteful number, since it uses less digits than its factorization.

79491456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 74 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 79491456 is about 8915.7981134613. The cubic root of 79491456 is about 429.9719758192.

The spelling of 79491456 in words is "seventy-nine million, four hundred ninety-one thousand, four hundred fifty-six".