12694986 has 12 divisors (see below), whose sum is σ = 27505842. Its totient is φ = 4231656.

The previous prime is 12694901. The next prime is 12694987. The reversal of 12694986 is 68949621.

It is a happy number.

12694986 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 can be written as a sum of positive squares in only one way, i.e., 12425625 + 269361 = 3525^2 + 519^2 .

It is a super-2 number, since 2×12694986² = 322325339080392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12694987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 352621 + ... + 352656.

Almost surely, 2^12694986 is an apocalyptic number.

12694986 is an abundant number, since it is smaller than the sum of its proper divisors (14810856).

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

12694986 is a wasteful number, since it uses less digits than its factorization.

12694986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705285 (or 705282 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 12694986 is about 3563.0023856293. The cubic root of 12694986 is about 233.2799474236.

The spelling of 12694986 in words is "twelve million, six hundred ninety-four thousand, nine hundred eighty-six".