13659668 has 12 divisors (see below), whose sum is σ = 26077632. Its totient is φ = 6208920.

The previous prime is 13659661. The next prime is 13659703. The reversal of 13659668 is 86695631.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 310447 = 13659668 / (1 + 3 + 6 + 5 + 9 + 6 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13659661) 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, 155180 + ... + 155267.

It is an arithmetic number, because the mean of its divisors is an integer number (2173136).

Almost surely, 2^13659668 is an apocalyptic number.

It is an amenable number.

13659668 is a deficient number, since it is larger than the sum of its proper divisors (12417964).

13659668 is a wasteful number, since it uses less digits than its factorization.

13659668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310462 (or 310460 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 13659668 is about 3695.8988081386. The cubic root of 13659668 is about 239.0452112435.

The spelling of 13659668 in words is "thirteen million, six hundred fifty-nine thousand, six hundred sixty-eight".