12691794 has 16 divisors (see below), whose sum is σ = 25974432. Its totient is φ = 4132128.

The previous prime is 12691793. The next prime is 12691807. The reversal of 12691794 is 49719621.

It is a super-2 number, since 2×12691794² = 322163269876872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12691793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24339 + ... + 24854.

It is an arithmetic number, because the mean of its divisors is an integer number (1623402).

Almost surely, 2^12691794 is an apocalyptic number.

12691794 is an abundant number, since it is smaller than the sum of its proper divisors (13282638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12691794 is a wasteful number, since it uses less digits than its factorization.

12691794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49241.

The product of its digits is 27216, while the sum is 39.

The square root of 12691794 is about 3562.5544206370. The cubic root of 12691794 is about 233.2603939818.

The spelling of 12691794 in words is "twelve million, six hundred ninety-one thousand, seven hundred ninety-four".