11841813 has 24 divisors (see below), whose sum is σ = 17997408. Its totient is φ = 7493472.

The previous prime is 11841811. The next prime is 11841829. The reversal of 11841813 is 31814811.

It is not a de Polignac number, because 11841813 - 2¹ = 11841811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11841811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13906 + ... + 14732.

It is an arithmetic number, because the mean of its divisors is an integer number (749892).

Almost surely, 2^11841813 is an apocalyptic number.

It is an amenable number.

11841813 is a deficient number, since it is larger than the sum of its proper divisors (6155595).

11841813 is a wasteful number, since it uses less digits than its factorization.

11841813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 910 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 11841813 is about 3441.1935429441. The cubic root of 11841813 is about 227.9324014744.

The spelling of 11841813 in words is "eleven million, eight hundred forty-one thousand, eight hundred thirteen".