11816837 has 2 divisors, whose sum is σ = 11816838. Its totient is φ = 11816836.

The previous prime is 11816821. The next prime is 11816839. The reversal of 11816837 is 73861811.

11816837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9156676 + 2660161 = 3026^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 11816837 - 2⁴ = 11816821 is a prime.

Together with 11816839, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11816797 and 11816806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11816839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5908418 + 5908419.

It is an arithmetic number, because the mean of its divisors is an integer number (5908419).

Almost surely, 2^11816837 is an apocalyptic number.

It is an amenable number.

11816837 is a deficient number, since it is larger than the sum of its proper divisors (1).

11816837 is an equidigital number, since it uses as much as digits as its factorization.

11816837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 11816837 is about 3437.5626539745. The cubic root of 11816837 is about 227.7720418323.

The spelling of 11816837 in words is "eleven million, eight hundred sixteen thousand, eight hundred thirty-seven".