12749323 has 4 divisors (see below), whose sum is σ = 13420360. Its totient is φ = 12078288.

The previous prime is 12749311. The next prime is 12749327. The reversal of 12749323 is 32394721.

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 12749323 - 2⁹ = 12748811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12749327) 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, 335490 + ... + 335527.

It is an arithmetic number, because the mean of its divisors is an integer number (3355090).

Almost surely, 2^12749323 is an apocalyptic number.

12749323 is a deficient number, since it is larger than the sum of its proper divisors (671037).

12749323 is an equidigital number, since it uses as much as digits as its factorization.

12749323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671036.

The product of its digits is 9072, while the sum is 31.

The square root of 12749323 is about 3570.6194140513. The cubic root of 12749323 is about 233.6123014863.

The spelling of 12749323 in words is "twelve million, seven hundred forty-nine thousand, three hundred twenty-three".