12694686 has 32 divisors (see below), whose sum is σ = 26459136. Its totient is φ = 4056000.

The previous prime is 12694667. The next prime is 12694687. The reversal of 12694686 is 68649621.

12694686 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12694686² = 322310105277192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12694687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24106 + ... + 24626.

It is an arithmetic number, because the mean of its divisors is an integer number (826848).

Almost surely, 2^12694686 is an apocalyptic number.

12694686 is an abundant number, since it is smaller than the sum of its proper divisors (13764450).

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

12694686 is a wasteful number, since it uses less digits than its factorization.

12694686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its digits is 124416, while the sum is 42.

The square root of 12694686 is about 3562.9602860543. The cubic root of 12694686 is about 233.2781098337.

The spelling of 12694686 in words is "twelve million, six hundred ninety-four thousand, six hundred eighty-six".