13698818 has 16 divisors (see below), whose sum is σ = 23768640. Its totient is φ = 5799696.

The previous prime is 13698809. The next prime is 13698833. The reversal of 13698818 is 81889631.

It is a happy number.

It is a super-2 number, since 2×13698818² = 375315229194248, which contains 22 as substring.

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, 4733 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (1485540).

Almost surely, 2^13698818 is an apocalyptic number.

13698818 is a deficient number, since it is larger than the sum of its proper divisors (10069822).

13698818 is a wasteful number, since it uses less digits than its factorization.

13698818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11881.

The product of its digits is 82944, while the sum is 44.

The square root of 13698818 is about 3701.1914297966. The cubic root of 13698818 is about 239.2733693830.

The spelling of 13698818 in words is "thirteen million, six hundred ninety-eight thousand, eight hundred eighteen".