13663996 has 6 divisors (see below), whose sum is σ = 23912000. Its totient is φ = 6831996.

The previous prime is 13663967. The next prime is 13663997. The reversal of 13663996 is 69936631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13663997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1707996 + ... + 1708003.

Almost surely, 2^13663996 is an apocalyptic number.

It is an amenable number.

13663996 is a deficient number, since it is larger than the sum of its proper divisors (10248004).

13663996 is a wasteful number, since it uses less digits than its factorization.

13663996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416003 (or 3416001 counting only the distinct ones).

The product of its digits is 157464, while the sum is 43.

The square root of 13663996 is about 3696.4842756327. The cubic root of 13663996 is about 239.0704553521.

The spelling of 13663996 in words is "thirteen million, six hundred sixty-three thousand, nine hundred ninety-six".