12392389 has 8 divisors (see below), whose sum is σ = 13104000. Its totient is φ = 11686752.

The previous prime is 12392383. The next prime is 12392437. The reversal of 12392389 is 98329321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12392389 - 2⁵ = 12392357 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 (12392383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3177 + ... + 5905.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 2^12392389 is an apocalyptic number.

12392389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12392389 is a deficient number, since it is larger than the sum of its proper divisors (711611).

12392389 is a wasteful number, since it uses less digits than its factorization.

12392389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987.

The product of its digits is 23328, while the sum is 37.

The square root of 12392389 is about 3520.2825170716. The cubic root of 12392389 is about 231.4115400150.

The spelling of 12392389 in words is "twelve million, three hundred ninety-two thousand, three hundred eighty-nine".