12749379 has 4 divisors (see below), whose sum is σ = 16999176. Its totient is φ = 8499584.

The previous prime is 12749353. The next prime is 12749393. The reversal of 12749379 is 97394721.

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 12749379 - 2⁸ = 12749123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12749379.

It is not an unprimeable number, because it can be changed into a prime (12749179) 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, 2124894 + ... + 2124899.

It is an arithmetic number, because the mean of its divisors is an integer number (4249794).

Almost surely, 2^12749379 is an apocalyptic number.

12749379 is a deficient number, since it is larger than the sum of its proper divisors (4249797).

12749379 is an equidigital number, since it uses as much as digits as its factorization.

12749379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249796.

The product of its digits is 95256, while the sum is 42.

The square root of 12749379 is about 3570.6272558193. The cubic root of 12749379 is about 233.6126435246.

The spelling of 12749379 in words is "twelve million, seven hundred forty-nine thousand, three hundred seventy-nine".