12899854 has 16 divisors (see below), whose sum is σ = 21299760. Its totient is φ = 5810560.

The previous prime is 12899851. The next prime is 12899857. The reversal of 12899854 is 45899821.

It is an interprime number because it is at equal distance from previous prime (12899851) and next prime (12899857).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12899851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (1331235).

Almost surely, 2^12899854 is an apocalyptic number.

12899854 is a deficient number, since it is larger than the sum of its proper divisors (8399906).

12899854 is a wasteful number, since it uses less digits than its factorization.

12899854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315.

The product of its digits is 207360, while the sum is 46.

The square root of 12899854 is about 3591.6366742754. The cubic root of 12899854 is about 234.5281250979.

The spelling of 12899854 in words is "twelve million, eight hundred ninety-nine thousand, eight hundred fifty-four".