11803893 has 4 divisors (see below), whose sum is σ = 15738528. Its totient is φ = 7869260.

The previous prime is 11803889. The next prime is 11803907. The reversal of 11803893 is 39830811.

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 an emirpimes, since its reverse is a distinct semiprime: 39830811 = 3 ⋅13276937.

It is a cyclic number.

It is not a de Polignac number, because 11803893 - 2² = 11803889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11803873) 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, 1967313 + ... + 1967318.

It is an arithmetic number, because the mean of its divisors is an integer number (3934632).

Almost surely, 2^11803893 is an apocalyptic number.

It is an amenable number.

11803893 is a deficient number, since it is larger than the sum of its proper divisors (3934635).

11803893 is an equidigital number, since it uses as much as digits as its factorization.

11803893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934634.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 11803893 is about 3435.6794087924. The cubic root of 11803893 is about 227.6888453315.

The spelling of 11803893 in words is "eleven million, eight hundred three thousand, eight hundred ninety-three".