13908686 has 16 divisors (see below), whose sum is σ = 24099120. Its totient is φ = 5950080.

The previous prime is 13908683. The next prime is 13908689. The reversal of 13908686 is 68680931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13908683) and next prime (13908689).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13908683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18221 + ... + 18968.

It is an arithmetic number, because the mean of its divisors is an integer number (1506195).

Almost surely, 2^13908686 is an apocalyptic number.

13908686 is a deficient number, since it is larger than the sum of its proper divisors (10190434).

13908686 is a wasteful number, since it uses less digits than its factorization.

13908686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37219.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 13908686 is about 3729.4350778637. The cubic root of 13908686 is about 240.4890836630.

The spelling of 13908686 in words is "thirteen million, nine hundred eight thousand, six hundred eighty-six".