12379289 has 4 divisors (see below), whose sum is σ = 13331556. Its totient is φ = 11427024.

The previous prime is 12379273. The next prime is 12379291. The reversal of 12379289 is 98297321.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2088025 + 10291264 = 1445^2 + 3208^2 .

It is a cyclic number.

It is not a de Polignac number, because 12379289 - 2⁴ = 12379273 is a prime.

It is a super-2 number, since 2×12379289² = 306493592291042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12379219) 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, 476114 + ... + 476139.

It is an arithmetic number, because the mean of its divisors is an integer number (3332889).

Almost surely, 2^12379289 is an apocalyptic number.

It is an amenable number.

12379289 is a deficient number, since it is larger than the sum of its proper divisors (952267).

12379289 is an equidigital number, since it uses as much as digits as its factorization.

12379289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952266.

The product of its digits is 54432, while the sum is 41.

The square root of 12379289 is about 3518.4213789710. The cubic root of 12379289 is about 231.3299695178.

The spelling of 12379289 in words is "twelve million, three hundred seventy-nine thousand, two hundred eighty-nine".