13693986 has 24 divisors (see below), whose sum is σ = 29827200. Its totient is φ = 4540536.

The previous prime is 13693969. The next prime is 13693987. The reversal of 13693986 is 68939631.

It is not an unprimeable number, because it can be changed into a prime (13693987) 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, 1671 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (1242800).

Almost surely, 2^13693986 is an apocalyptic number.

13693986 is an abundant number, since it is smaller than the sum of its proper divisors (16133214).

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

13693986 is a wasteful number, since it uses less digits than its factorization.

13693986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030 (or 4027 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 13693986 is about 3700.5386094459. The cubic root of 13693986 is about 239.2452330166.

The spelling of 13693986 in words is "thirteen million, six hundred ninety-three thousand, nine hundred eighty-six".