12895999 has 2 divisors, whose sum is σ = 12896000. Its totient is φ = 12895998.

The previous prime is 12895997. The next prime is 12896021. The reversal of 12895999 is 99959821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12895999 - 2¹ = 12895997 is a prime.

Together with 12895997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12895997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6447999 + 6448000.

It is an arithmetic number, because the mean of its divisors is an integer number (6448000).

Almost surely, 2^12895999 is an apocalyptic number.

12895999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12895999 is an equidigital number, since it uses as much as digits as its factorization.

12895999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 52.

The square root of 12895999 is about 3591.0999707610. The cubic root of 12895999 is about 234.5047605958.

The spelling of 12895999 in words is "twelve million, eight hundred ninety-five thousand, nine hundred ninety-nine".