79618464 has 84 divisors (see below), whose sum is σ = 235084626. Its totient is φ = 26531712.

The previous prime is 79618457. The next prime is 79618471. The reversal of 79618464 is 46481697.

It is an interprime number because it is at equal distance from previous prime (79618457) and next prime (79618471).

It can be written as a sum of positive squares in only one way, i.e., 49280400 + 30338064 = 7020^2 + 5508^2 .

It is an unprimeable number.

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 in 13 ways as a sum of consecutive naturals, for example, 21622 + ... + 25034.

Almost surely, 2^79618464 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 79618464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117542313).

79618464 is an abundant number, since it is smaller than the sum of its proper divisors (155466162).

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

79618464 is an equidigital number, since it uses as much as digits as its factorization.

79618464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441 (or 3418 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 79618464 is about 8922.9179083975. The cubic root of 79618464 is about 430.2008508238.

The spelling of 79618464 in words is "seventy-nine million, six hundred eighteen thousand, four hundred sixty-four".