79653456 has 70 divisors (see below), whose sum is σ = 231420890. Its totient is φ = 26547264.

The previous prime is 79653451. The next prime is 79653461. The reversal of 79653456 is 65435697.

It is an interprime number because it is at equal distance from previous prime (79653451) and next prime (79653461).

It can be written as a sum of positive squares in only one way, i.e., 69155856 + 10497600 = 8316^2 + 3240^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79653451) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 8250 + ... + 15078.

Almost surely, 2^79653456 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 79653456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115710445).

79653456 is an abundant number, since it is smaller than the sum of its proper divisors (151767434).

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

79653456 is an equidigital number, since it uses as much as digits as its factorization.

79653456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855 (or 6834 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 79653456 is about 8924.8784865678. The cubic root of 79653456 is about 430.2638654505.

The spelling of 79653456 in words is "seventy-nine million, six hundred fifty-three thousand, four hundred fifty-six".