12374639 has 4 divisors (see below), whose sum is σ = 12531360. Its totient is φ = 12217920.

The previous prime is 12374633. The next prime is 12374641. The reversal of 12374639 is 93647321.

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 12374639 - 2¹⁶ = 12309103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12374599 and 12374608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12374633) 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, 78242 + ... + 78399.

It is an arithmetic number, because the mean of its divisors is an integer number (3132840).

Almost surely, 2^12374639 is an apocalyptic number.

12374639 is a deficient number, since it is larger than the sum of its proper divisors (156721).

12374639 is an equidigital number, since it uses as much as digits as its factorization.

12374639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156720.

The product of its digits is 27216, while the sum is 35.

The square root of 12374639 is about 3517.7605091876. The cubic root of 12374639 is about 231.3010012663.

The spelling of 12374639 in words is "twelve million, three hundred seventy-four thousand, six hundred thirty-nine".