12894891 has 24 divisors (see below), whose sum is σ = 18567360. Its totient is φ = 7957632.

The previous prime is 12894877. The next prime is 12894899. The reversal of 12894891 is 19849821.

It is not a de Polignac number, because 12894891 - 2⁵ = 12894859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12894899) 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 23 ways as a sum of consecutive naturals, for example, 92700 + ... + 92838.

It is an arithmetic number, because the mean of its divisors is an integer number (773640).

Almost surely, 2^12894891 is an apocalyptic number.

12894891 is a deficient number, since it is larger than the sum of its proper divisors (5672469).

12894891 is a wasteful number, since it uses less digits than its factorization.

12894891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 266 counting only the distinct ones).

The product of its digits is 41472, while the sum is 42.

The square root of 12894891 is about 3590.9456971667. The cubic root of 12894891 is about 234.4980443340.

The spelling of 12894891 in words is "twelve million, eight hundred ninety-four thousand, eight hundred ninety-one".