12789379 has 4 divisors (see below), whose sum is σ = 12826584. Its totient is φ = 12752176.

The previous prime is 12789373. The next prime is 12789397. The reversal of 12789379 is 97398721.

It is a happy number.

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 12789379 - 2⁵ = 12789347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12789373) 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, 18082 + ... + 18775.

It is an arithmetic number, because the mean of its divisors is an integer number (3206646).

Almost surely, 2^12789379 is an apocalyptic number.

12789379 is a deficient number, since it is larger than the sum of its proper divisors (37205).

12789379 is an equidigital number, since it uses as much as digits as its factorization.

12789379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37204.

The product of its digits is 190512, while the sum is 46.

The square root of 12789379 is about 3576.2241260861. The cubic root of 12789379 is about 233.8567011693.

The spelling of 12789379 in words is "twelve million, seven hundred eighty-nine thousand, three hundred seventy-nine".