13984685 has 16 divisors (see below), whose sum is σ = 19716480. Its totient is φ = 9387840.

The previous prime is 13984681. The next prime is 13984687. The reversal of 13984685 is 58648931.

It is not a de Polignac number, because 13984685 - 2² = 13984681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13984681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9065 + ... + 10494.

It is an arithmetic number, because the mean of its divisors is an integer number (1232280).

Almost surely, 2^13984685 is an apocalyptic number.

It is an amenable number.

13984685 is a deficient number, since it is larger than the sum of its proper divisors (5731795).

13984685 is a wasteful number, since it uses less digits than its factorization.

13984685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19588.

The product of its digits is 207360, while the sum is 44.

The square root of 13984685 is about 3739.6102738120. The cubic root of 13984685 is about 240.9263102356.

It can be divided in two parts, 139846 and 85, that added together give a palindrome (139931).

The spelling of 13984685 in words is "thirteen million, nine hundred eighty-four thousand, six hundred eighty-five".