13660986 has 16 divisors (see below), whose sum is σ = 27413568. Its totient is φ = 4538400.

The previous prime is 13660967. The next prime is 13660991. The reversal of 13660986 is 68906631.

It is a happy number.

13660986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1795 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (1713348).

Almost surely, 2^13660986 is an apocalyptic number.

13660986 is an abundant number, since it is smaller than the sum of its proper divisors (13752582).

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

13660986 is a wasteful number, since it uses less digits than its factorization.

13660986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7637.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 13660986 is about 3696.0771095852. The cubic root of 13660986 is about 239.0528993624.

The spelling of 13660986 in words is "thirteen million, six hundred sixty thousand, nine hundred eighty-six".