12439037 has 4 divisors (see below), whose sum is σ = 13395900. Its totient is φ = 11482176.

The previous prime is 12439013. The next prime is 12439039. The reversal of 12439037 is 73093421.

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 5331481 + 7107556 = 2309^2 + 2666^2 .

It is a cyclic number.

It is not a de Polignac number, because 12439037 - 2¹² = 12434941 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 (12439039) 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, 478412 + ... + 478437.

It is an arithmetic number, because the mean of its divisors is an integer number (3348975).

Almost surely, 2^12439037 is an apocalyptic number.

It is an amenable number.

12439037 is a deficient number, since it is larger than the sum of its proper divisors (956863).

12439037 is an equidigital number, since it uses as much as digits as its factorization.

12439037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956862.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 12439037 is about 3526.9018982671. The cubic root of 12439037 is about 231.7015397588.

The spelling of 12439037 in words is "twelve million, four hundred thirty-nine thousand, thirty-seven".