79618064 has 20 divisors (see below), whose sum is σ = 158023740. Its totient is φ = 38837760.

The previous prime is 79618061. The next prime is 79618093. The reversal of 79618064 is 46081697.

It can be written as a sum of positive squares in 2 ways, for example, as 14137600 + 65480464 = 3760^2 + 8092^2 .

It is a super-2 number, since 2×79618064² = 12678072230216192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (79618061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60029 + ... + 61340.

It is an arithmetic number, because the mean of its divisors is an integer number (7901187).

Almost surely, 2^79618064 is an apocalyptic number.

It is an amenable number.

79618064 is a deficient number, since it is larger than the sum of its proper divisors (78405676).

79618064 is a wasteful number, since it uses less digits than its factorization.

79618064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121418 (or 121412 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 79618064 is about 8922.8954941768. The cubic root of 79618064 is about 430.2001303852.

The spelling of 79618064 in words is "seventy-nine million, six hundred eighteen thousand, sixty-four".