12723937 has 4 divisors (see below), whose sum is σ = 12738816. Its totient is φ = 12709060.

The previous prime is 12723923. The next prime is 12723941. The reversal of 12723937 is 73932721.

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.

It is a cyclic number.

It is not a de Polignac number, because 12723937 - 2¹⁵ = 12691169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12723917) 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, 6073 + ... + 7894.

It is an arithmetic number, because the mean of its divisors is an integer number (3184704).

Almost surely, 2^12723937 is an apocalyptic number.

It is an amenable number.

12723937 is a deficient number, since it is larger than the sum of its proper divisors (14879).

12723937 is an equidigital number, since it uses as much as digits as its factorization.

12723937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14878.

The product of its digits is 15876, while the sum is 34.

The square root of 12723937 is about 3567.0627973166. The cubic root of 12723937 is about 233.4571449489.

The spelling of 12723937 in words is "twelve million, seven hundred twenty-three thousand, nine hundred thirty-seven".