13827993 has 8 divisors (see below), whose sum is σ = 18497856. Its totient is φ = 9188400.

The previous prime is 13827977. The next prime is 13828039. The reversal of 13827993 is 39972831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13827993 - 2⁴ = 13827977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13827943) 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, 6478 + ... + 8343.

It is an arithmetic number, because the mean of its divisors is an integer number (2312232).

Almost surely, 2^13827993 is an apocalyptic number.

It is an amenable number.

13827993 is a deficient number, since it is larger than the sum of its proper divisors (4669863).

13827993 is a wasteful number, since it uses less digits than its factorization.

13827993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135.

The product of its digits is 81648, while the sum is 42.

The square root of 13827993 is about 3718.6009465927. The cubic root of 13827993 is about 240.0231054144.

The spelling of 13827993 in words is "thirteen million, eight hundred twenty-seven thousand, nine hundred ninety-three".