12876985 has 16 divisors (see below), whose sum is σ = 16941312. Its totient is φ = 9318400.

The previous prime is 12876979. The next prime is 12876989. The reversal of 12876985 is 58967821.

It is not a de Polignac number, because 12876985 - 2³ = 12876977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12876989) 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 15 ways as a sum of consecutive naturals, for example, 13680 + ... + 14590.

It is an arithmetic number, because the mean of its divisors is an integer number (1058832).

Almost surely, 2^12876985 is an apocalyptic number.

It is an amenable number.

12876985 is a deficient number, since it is larger than the sum of its proper divisors (4064327).

12876985 is a wasteful number, since it uses less digits than its factorization.

12876985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its digits is 241920, while the sum is 46.

The square root of 12876985 is about 3588.4516159480. The cubic root of 12876985 is about 234.3894517904.

It can be divided in two parts, 12876 and 985, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 12876985 in words is "twelve million, eight hundred seventy-six thousand, nine hundred eighty-five".