12885899 has 4 divisors (see below), whose sum is σ = 13877136. Its totient is φ = 11894664.

The previous prime is 12885877. The next prime is 12885913. The reversal of 12885899 is 99858821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12885899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12885799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495599 + ... + 495624.

It is an arithmetic number, because the mean of its divisors is an integer number (3469284).

Almost surely, 2^12885899 is an apocalyptic number.

12885899 is a deficient number, since it is larger than the sum of its proper divisors (991237).

12885899 is an equidigital number, since it uses as much as digits as its factorization.

12885899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991236.

The product of its digits is 414720, while the sum is 50.

The square root of 12885899 is about 3589.6934409501. The cubic root of 12885899 is about 234.4435241178.

The spelling of 12885899 in words is "twelve million, eight hundred eighty-five thousand, eight hundred ninety-nine".