64579123 has 4 divisors (see below), whose sum is σ = 73804720. Its totient is φ = 55353528.

The previous prime is 64579117. The next prime is 64579159. The reversal of 64579123 is 32197546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64579123 - 2⁵ = 64579091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64579183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4612788 + ... + 4612801.

It is an arithmetic number, because the mean of its divisors is an integer number (18451180).

Almost surely, 2^64579123 is an apocalyptic number.

64579123 is a deficient number, since it is larger than the sum of its proper divisors (9225597).

64579123 is an equidigital number, since it uses as much as digits as its factorization.

64579123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225596.

The product of its digits is 45360, while the sum is 37.

The square root of 64579123 is about 8036.1136751542. The cubic root of 64579123 is about 401.2028852914.

The spelling of 64579123 in words is "sixty-four million, five hundred seventy-nine thousand, one hundred twenty-three".