13793993 has 4 divisors (see below), whose sum is σ = 13801488. Its totient is φ = 13786500.

The previous prime is 13793971. The next prime is 13794017. The reversal of 13793993 is 39939731.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13793993 - 2⁶ = 13793929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13793093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130 + ... + 5372.

It is an arithmetic number, because the mean of its divisors is an integer number (3450372).

Almost surely, 2^13793993 is an apocalyptic number.

It is an amenable number.

13793993 is a deficient number, since it is larger than the sum of its proper divisors (7495).

13793993 is an equidigital number, since it uses as much as digits as its factorization.

13793993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7494.

The product of its digits is 137781, while the sum is 44.

The square root of 13793993 is about 3714.0265211762. The cubic root of 13793993 is about 239.8262225825.

The spelling of 13793993 in words is "thirteen million, seven hundred ninety-three thousand, nine hundred ninety-three".