13933663 has 4 divisors (see below), whose sum is σ = 14383168. Its totient is φ = 13484160.

The previous prime is 13933651. The next prime is 13933697. The reversal of 13933663 is 36633931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36633931 = 29 ⋅1263239.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13933663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13933363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224706 + ... + 224767.

It is an arithmetic number, because the mean of its divisors is an integer number (3595792).

Almost surely, 2^13933663 is an apocalyptic number.

13933663 is a deficient number, since it is larger than the sum of its proper divisors (449505).

13933663 is an equidigital number, since it uses as much as digits as its factorization.

13933663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449504.

The product of its digits is 26244, while the sum is 34.

The square root of 13933663 is about 3732.7822063442. The cubic root of 13933663 is about 240.6329530851.

The spelling of 13933663 in words is "thirteen million, nine hundred thirty-three thousand, six hundred sixty-three".