12891692 has 12 divisors (see below), whose sum is σ = 24611496. Its totient is φ = 5859840.

The previous prime is 12891653. The next prime is 12891713. The reversal of 12891692 is 29619821.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 146453 + ... + 146540.

It is an arithmetic number, because the mean of its divisors is an integer number (2050958).

Almost surely, 2^12891692 is an apocalyptic number.

It is an amenable number.

12891692 is a deficient number, since it is larger than the sum of its proper divisors (11719804).

12891692 is a wasteful number, since it uses less digits than its factorization.

12891692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293008 (or 293006 counting only the distinct ones).

The product of its digits is 15552, while the sum is 38.

The square root of 12891692 is about 3590.5002436986. The cubic root of 12891692 is about 234.4786510904.

The spelling of 12891692 in words is "twelve million, eight hundred ninety-one thousand, six hundred ninety-two".