13663402 has 8 divisors (see below), whose sum is σ = 20511936. Its totient is φ = 6826092.

The previous prime is 13663399. The next prime is 13663423. The reversal of 13663402 is 20436631.

13663402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663 + ... + 5485.

It is an arithmetic number, because the mean of its divisors is an integer number (2563992).

Almost surely, 2^13663402 is an apocalyptic number.

13663402 is a deficient number, since it is larger than the sum of its proper divisors (6848534).

13663402 is a wasteful number, since it uses less digits than its factorization.

13663402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 13663402 is about 3696.4039281442. The cubic root of 13663402 is about 239.0669910188.

The spelling of 13663402 in words is "thirteen million, six hundred sixty-three thousand, four hundred two".