12905723 has 2 divisors, whose sum is σ = 12905724. Its totient is φ = 12905722.

The previous prime is 12905713. The next prime is 12905749. The reversal of 12905723 is 32750921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12905723 - 2⁸ = 12905467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12905713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6452861 + 6452862.

It is an arithmetic number, because the mean of its divisors is an integer number (6452862).

Almost surely, 2^12905723 is an apocalyptic number.

12905723 is a deficient number, since it is larger than the sum of its proper divisors (1).

12905723 is an equidigital number, since it uses as much as digits as its factorization.

12905723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 12905723 is about 3592.4536183506. The cubic root of 12905723 is about 234.5636871767.

The spelling of 12905723 in words is "twelve million, nine hundred five thousand, seven hundred twenty-three".