13663507 has 8 divisors (see below), whose sum is σ = 16052400. Its totient is φ = 11465760.

The previous prime is 13663501. The next prime is 13663577. The reversal of 13663507 is 70536631.

13663507 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 a cyclic number.

It is not a de Polignac number, because 13663507 - 2³ = 13663499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13663501) 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, 47632 + ... + 47917.

It is an arithmetic number, because the mean of its divisors is an integer number (2006550).

Almost surely, 2^13663507 is an apocalyptic number.

13663507 is a deficient number, since it is larger than the sum of its proper divisors (2388893).

13663507 is a wasteful number, since it uses less digits than its factorization.

13663507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95573.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 13663507 is about 3696.4181311102. The cubic root of 13663507 is about 239.0676034082.

The spelling of 13663507 in words is "thirteen million, six hundred sixty-three thousand, five hundred seven".