12308986 has 16 divisors (see below), whose sum is σ = 19828800. Its totient is φ = 5709760.

The previous prime is 12308981. The next prime is 12308987. The reversal of 12308986 is 68980321.

It is a super-2 number, since 2×12308986² = 303022272696392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12308981) 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, 136 + ... + 4963.

It is an arithmetic number, because the mean of its divisors is an integer number (1239300).

Almost surely, 2^12308986 is an apocalyptic number.

12308986 is a deficient number, since it is larger than the sum of its proper divisors (7519814).

12308986 is a wasteful number, since it uses less digits than its factorization.

12308986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 12308986 is about 3508.4164519053. The cubic root of 12308986 is about 230.8912239373.

The spelling of 12308986 in words is "twelve million, three hundred eight thousand, nine hundred eighty-six".