12894681 has 8 divisors (see below), whose sum is σ = 17209504. Its totient is φ = 8588160.

The previous prime is 12894671. The next prime is 12894689. The reversal of 12894681 is 18649821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12894681 - 2⁹ = 12894169 is a prime.

It is a super-2 number, since 2×12894681² = 332545596183522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12894689) 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, 4986 + ... + 7116.

It is an arithmetic number, because the mean of its divisors is an integer number (2151188).

Almost surely, 2^12894681 is an apocalyptic number.

It is an amenable number.

12894681 is a deficient number, since it is larger than the sum of its proper divisors (4314823).

12894681 is a wasteful number, since it uses less digits than its factorization.

12894681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151.

The product of its digits is 27648, while the sum is 39.

The square root of 12894681 is about 3590.9164568394. The cubic root of 12894681 is about 234.4967713529.

The spelling of 12894681 in words is "twelve million, eight hundred ninety-four thousand, six hundred eighty-one".