12399337 has 4 divisors (see below), whose sum is σ = 12409600. Its totient is φ = 12389076.

The previous prime is 12399313. The next prime is 12399347. The reversal of 12399337 is 73399321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12399337 - 2¹¹ = 12397289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12399296 and 12399305.

It is not an unprimeable number, because it can be changed into a prime (12399347) 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, 3033 + ... + 5830.

It is an arithmetic number, because the mean of its divisors is an integer number (3102400).

Almost surely, 2^12399337 is an apocalyptic number.

It is an amenable number.

12399337 is a deficient number, since it is larger than the sum of its proper divisors (10263).

12399337 is an equidigital number, since it uses as much as digits as its factorization.

12399337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262.

The product of its digits is 30618, while the sum is 37.

The square root of 12399337 is about 3521.2692313994. The cubic root of 12399337 is about 231.4547801841.

The spelling of 12399337 in words is "twelve million, three hundred ninety-nine thousand, three hundred thirty-seven".