12990586 has 24 divisors (see below), whose sum is σ = 22998816. Its totient is φ = 5486040.

The previous prime is 12990583. The next prime is 12990587. The reversal of 12990586 is 68509921.

12990586 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12990583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6025 + ... + 7891.

It is an arithmetic number, because the mean of its divisors is an integer number (958284).

Almost surely, 2^12990586 is an apocalyptic number.

12990586 is a deficient number, since it is larger than the sum of its proper divisors (10008230).

12990586 is a wasteful number, since it uses less digits than its factorization.

12990586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1947 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 12990586 is about 3604.2455521232. The cubic root of 12990586 is about 235.0766974642.

The spelling of 12990586 in words is "twelve million, nine hundred ninety thousand, five hundred eighty-six".