11743811 has 4 divisors (see below), whose sum is σ = 12148800. Its totient is φ = 11338824.

The previous prime is 11743801. The next prime is 11743813. The reversal of 11743811 is 11834711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11834711 = 7 ⋅1690673.

It is a cyclic number.

It is not a de Polignac number, because 11743811 - 2¹⁸ = 11481667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11743813) 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 3 ways as a sum of consecutive naturals, for example, 202451 + ... + 202508.

It is an arithmetic number, because the mean of its divisors is an integer number (3037200).

Almost surely, 2^11743811 is an apocalyptic number.

11743811 is a deficient number, since it is larger than the sum of its proper divisors (404989).

11743811 is an equidigital number, since it uses as much as digits as its factorization.

11743811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404988.

The product of its digits is 672, while the sum is 26.

The square root of 11743811 is about 3426.9244228608. The cubic root of 11743811 is about 227.3018747635.

The spelling of 11743811 in words is "eleven million, seven hundred forty-three thousand, eight hundred eleven".