12849985 has 16 divisors (see below), whose sum is σ = 16940160. Its totient is φ = 9313920.

The previous prime is 12849973. The next prime is 12850039. The reversal of 12849985 is 58994821.

It is not a de Polignac number, because 12849985 - 2⁵ = 12849953 is a prime.

It is a super-2 number, since 2×12849985² = 330244229000450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756 + ... + 5125.

It is an arithmetic number, because the mean of its divisors is an integer number (1058760).

Almost surely, 2^12849985 is an apocalyptic number.

It is an amenable number.

12849985 is a deficient number, since it is larger than the sum of its proper divisors (4090175).

12849985 is a wasteful number, since it uses less digits than its factorization.

12849985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928.

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

The square root of 12849985 is about 3584.6875735551. The cubic root of 12849985 is about 234.2255173628.

The spelling of 12849985 in words is "twelve million, eight hundred forty-nine thousand, nine hundred eighty-five".