12423959 has 4 divisors (see below), whose sum is σ = 12513480. Its totient is φ = 12334440.

The previous prime is 12423941. The next prime is 12423973. The reversal of 12423959 is 95932421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12423959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12413959) 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, 44552 + ... + 44829.

It is an arithmetic number, because the mean of its divisors is an integer number (3128370).

Almost surely, 2^12423959 is an apocalyptic number.

12423959 is a deficient number, since it is larger than the sum of its proper divisors (89521).

12423959 is an equidigital number, since it uses as much as digits as its factorization.

12423959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89520.

The product of its digits is 19440, while the sum is 35.

The square root of 12423959 is about 3524.7636800217. The cubic root of 12423959 is about 231.6078827671.

The spelling of 12423959 in words is "twelve million, four hundred twenty-three thousand, nine hundred fifty-nine".