13366993 has 4 divisors (see below), whose sum is σ = 13387248. Its totient is φ = 13346740.

The previous prime is 13366967. The next prime is 13367017. The reversal of 13366993 is 39966331.

It is a happy number.

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 not a de Polignac number, because 13366993 - 2⁵ = 13366961 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13366963) 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, 9103 + ... + 10468.

It is an arithmetic number, because the mean of its divisors is an integer number (3346812).

Almost surely, 2^13366993 is an apocalyptic number.

It is an amenable number.

13366993 is a deficient number, since it is larger than the sum of its proper divisors (20255).

13366993 is an equidigital number, since it uses as much as digits as its factorization.

13366993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20254.

The product of its digits is 78732, while the sum is 40.

The square root of 13366993 is about 3656.0898511935. The cubic root of 13366993 is about 237.3255923617.

The spelling of 13366993 in words is "thirteen million, three hundred sixty-six thousand, nine hundred ninety-three".