13766986 has 8 divisors (see below), whose sum is σ = 20669220. Its totient is φ = 6877248.

The previous prime is 13766983. The next prime is 13766989. The reversal of 13766986 is 68966731.

It is an interprime number because it is at equal distance from previous prime (13766983) and next prime (13766989).

It can be written as a sum of positive squares in 2 ways, for example, as 10595025 + 3171961 = 3255^2 + 1781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13766981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450 + ... + 5266.

Almost surely, 2^13766986 is an apocalyptic number.

13766986 is a deficient number, since it is larger than the sum of its proper divisors (6902234).

13766986 is a wasteful number, since it uses less digits than its factorization.

13766986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6248.

The product of its digits is 326592, while the sum is 46.

The square root of 13766986 is about 3710.3889284009. The cubic root of 13766986 is about 239.6696032373.

The spelling of 13766986 in words is "thirteen million, seven hundred sixty-six thousand, nine hundred eighty-six".