13506986 has 16 divisors (see below), whose sum is σ = 21680160. Its totient is φ = 6292080.

The previous prime is 13506973. The next prime is 13507009. The reversal of 13506986 is 68960531.

13506986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 596 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (1355010).

Almost surely, 2^13506986 is an apocalyptic number.

13506986 is a deficient number, since it is larger than the sum of its proper divisors (8173174).

13506986 is a wasteful number, since it uses less digits than its factorization.

13506986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 13506986 is about 3675.1851654032. The cubic root of 13506986 is about 238.1512232449.

The spelling of 13506986 in words is "thirteen million, five hundred six thousand, nine hundred eighty-six".