12691832 has 16 divisors (see below), whose sum is σ = 23945640. Its totient is φ = 6306336.

The previous prime is 12691831. The next prime is 12691849. The reversal of 12691832 is 23819621.

It is a super-2 number, since 2×12691832² = 322165199032448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12691831) 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 3 ways as a sum of consecutive naturals, for example, 3563 + ... + 6170.

Almost surely, 2^12691832 is an apocalyptic number.

It is an amenable number.

12691832 is a deficient number, since it is larger than the sum of its proper divisors (11253808).

12691832 is a wasteful number, since it uses less digits than its factorization.

12691832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9902 (or 9898 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 12691832 is about 3562.5597538848. The cubic root of 12691832 is about 233.2606267801.

The spelling of 12691832 in words is "twelve million, six hundred ninety-one thousand, eight hundred thirty-two".