11838393 has 20 divisors (see below), whose sum is σ = 20211840. Its totient is φ = 6764472.

The previous prime is 11838391. The next prime is 11838397. The reversal of 11838393 is 39383811.

It is not a de Polignac number, because 11838393 - 2¹ = 11838391 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11838391) 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 19 ways as a sum of consecutive naturals, for example, 9873 + ... + 11006.

It is an arithmetic number, because the mean of its divisors is an integer number (1010592).

Almost surely, 2^11838393 is an apocalyptic number.

It is an amenable number.

11838393 is a deficient number, since it is larger than the sum of its proper divisors (8373447).

11838393 is an equidigital number, since it uses as much as digits as its factorization.

11838393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20898 (or 20889 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 11838393 is about 3440.6965864487. The cubic root of 11838393 is about 227.9104565275.

The spelling of 11838393 in words is "eleven million, eight hundred thirty-eight thousand, three hundred ninety-three".