12423664 has 20 divisors (see below), whose sum is σ = 26259480. Its totient is φ = 5647040.

The previous prime is 12423643. The next prime is 12423667. The reversal of 12423664 is 46632421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423667) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35119 + ... + 35470.

It is an arithmetic number, because the mean of its divisors is an integer number (1312974).

Almost surely, 2^12423664 is an apocalyptic number.

It is an amenable number.

12423664 is an abundant number, since it is smaller than the sum of its proper divisors (13835816).

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

12423664 is a wasteful number, since it uses less digits than its factorization.

12423664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70608 (or 70602 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 12423664 is about 3524.7218329962. The cubic root of 12423664 is about 231.6060496191.

The spelling of 12423664 in words is "twelve million, four hundred twenty-three thousand, six hundred sixty-four".