12469439 has 4 divisors (see below), whose sum is σ = 12627360. Its totient is φ = 12311520.

The previous prime is 12469433. The next prime is 12469493. The reversal of 12469439 is 93496421.

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 12469439 - 2⁴ = 12469423 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12469433) 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, 78842 + ... + 78999.

It is an arithmetic number, because the mean of its divisors is an integer number (3156840).

Almost surely, 2^12469439 is an apocalyptic number.

12469439 is a deficient number, since it is larger than the sum of its proper divisors (157921).

12469439 is an equidigital number, since it uses as much as digits as its factorization.

12469439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157920.

The product of its digits is 46656, while the sum is 38.

The square root of 12469439 is about 3531.2092829511. The cubic root of 12469439 is about 231.8901518713.

The spelling of 12469439 in words is "twelve million, four hundred sixty-nine thousand, four hundred thirty-nine".