13811684 has 24 divisors (see below), whose sum is σ = 26707968. Its totient is φ = 6216320.

The previous prime is 13811669. The next prime is 13811687. The reversal of 13811684 is 48611831.

It is a happy number.

It is a super-2 number, since 2×13811684² = 381525229831712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13811684.

It is not an unprimeable number, because it can be changed into a prime (13811687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2852 + ... + 5979.

It is an arithmetic number, because the mean of its divisors is an integer number (1112832).

Almost surely, 2^13811684 is an apocalyptic number.

It is an amenable number.

13811684 is a deficient number, since it is larger than the sum of its proper divisors (12896284).

13811684 is a wasteful number, since it uses less digits than its factorization.

13811684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8875 (or 8873 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 13811684 is about 3716.4074050082. The cubic root of 13811684 is about 239.9287056753.

The spelling of 13811684 in words is "thirteen million, eight hundred eleven thousand, six hundred eighty-four".