12390379 has 2 divisors, whose sum is σ = 12390380. Its totient is φ = 12390378.

The previous prime is 12390349. The next prime is 12390401. The reversal of 12390379 is 97309321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12390379 - 2⁵ = 12390347 is a prime.

It is not a weakly prime, because it can be changed into another prime (12390349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6195189 + 6195190.

It is an arithmetic number, because the mean of its divisors is an integer number (6195190).

Almost surely, 2^12390379 is an apocalyptic number.

12390379 is a deficient number, since it is larger than the sum of its proper divisors (1).

12390379 is an equidigital number, since it uses as much as digits as its factorization.

12390379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 12390379 is about 3519.9970170442. The cubic root of 12390379 is about 231.3990279711.

It can be divided in two parts, 12390 and 379, that added together give a square (12769 = 113²).

The spelling of 12390379 in words is "twelve million, three hundred ninety thousand, three hundred seventy-nine".