12560839 has 2 divisors, whose sum is σ = 12560840. Its totient is φ = 12560838.

The previous prime is 12560831. The next prime is 12560851. The reversal of 12560839 is 93806521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12560839 - 2³ = 12560831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12560831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6280419 + 6280420.

It is an arithmetic number, because the mean of its divisors is an integer number (6280420).

Almost surely, 2^12560839 is an apocalyptic number.

12560839 is a deficient number, since it is larger than the sum of its proper divisors (1).

12560839 is an equidigital number, since it uses as much as digits as its factorization.

12560839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12560839 is about 3544.1273961301. The cubic root of 12560839 is about 232.4553519692.

The spelling of 12560839 in words is "twelve million, five hundred sixty thousand, eight hundred thirty-nine".