12905379 has 8 divisors (see below), whose sum is σ = 19119120. Its totient is φ = 8603568.

The previous prime is 12905311. The next prime is 12905381. The reversal of 12905379 is 97350921.

It is not a de Polignac number, because 12905379 - 2⁷ = 12905251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12905479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238962 + ... + 239015.

It is an arithmetic number, because the mean of its divisors is an integer number (2389890).

Almost surely, 2^12905379 is an apocalyptic number.

12905379 is a deficient number, since it is larger than the sum of its proper divisors (6213741).

12905379 is an equidigital number, since it uses as much as digits as its factorization.

12905379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477986 (or 477980 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 12905379 is about 3592.4057398907. The cubic root of 12905379 is about 234.5616030722.

The spelling of 12905379 in words is "twelve million, nine hundred five thousand, three hundred seventy-nine".