12904279 has 2 divisors, whose sum is σ = 12904280. Its totient is φ = 12904278.

The previous prime is 12904271. The next prime is 12904291. The reversal of 12904279 is 97240921.

It is a happy number.

12904279 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12904279 - 2³ = 12904271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12904271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6452139 + 6452140.

It is an arithmetic number, because the mean of its divisors is an integer number (6452140).

Almost surely, 2^12904279 is an apocalyptic number.

12904279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12904279 is an equidigital number, since it uses as much as digits as its factorization.

12904279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 12904279 is about 3592.2526358818. The cubic root of 12904279 is about 234.5549385361.

The spelling of 12904279 in words is "twelve million, nine hundred four thousand, two hundred seventy-nine".