13668673 has 4 divisors (see below), whose sum is σ = 13680640. Its totient is φ = 13656708.

The previous prime is 13668661. The next prime is 13668679. The reversal of 13668673 is 37686631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13668673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13668679) 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, 4065 + ... + 6622.

It is an arithmetic number, because the mean of its divisors is an integer number (3420160).

Almost surely, 2^13668673 is an apocalyptic number.

It is an amenable number.

13668673 is a deficient number, since it is larger than the sum of its proper divisors (11967).

13668673 is a wasteful number, since it uses less digits than its factorization.

13668673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11966.

The product of its digits is 108864, while the sum is 40.

The square root of 13668673 is about 3697.1168496546. The cubic root of 13668673 is about 239.0977290956.

It can be divided in two parts, 13668 and 673, that added together give a palindrome (14341).

The spelling of 13668673 in words is "thirteen million, six hundred sixty-eight thousand, six hundred seventy-three".