13668743 has 8 divisors (see below), whose sum is σ = 14965776. Its totient is φ = 12380800.

The previous prime is 13668727. The next prime is 13668749. The reversal of 13668743 is 34786631.

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 13668743 - 2⁴ = 13668727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13668697 and 13668706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668749) 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, 1103 + ... + 5343.

It is an arithmetic number, because the mean of its divisors is an integer number (1870722).

Almost surely, 2^13668743 is an apocalyptic number.

13668743 is a deficient number, since it is larger than the sum of its proper divisors (1297033).

13668743 is a wasteful number, since it uses less digits than its factorization.

13668743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545.

The product of its digits is 72576, while the sum is 38.

The square root of 13668743 is about 3697.1263164788. The cubic root of 13668743 is about 239.0981372507.

The spelling of 13668743 in words is "thirteen million, six hundred sixty-eight thousand, seven hundred forty-three".