11806839 has 24 divisors (see below), whose sum is σ = 18720000. Its totient is φ = 7111440.

The previous prime is 11806819. The next prime is 11806849. The reversal of 11806839 is 93860811.

11806839 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11806839 - 2⁸ = 11806583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11806819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23412 + ... + 23910.

It is an arithmetic number, because the mean of its divisors is an integer number (780000).

Almost surely, 2^11806839 is an apocalyptic number.

11806839 is a deficient number, since it is larger than the sum of its proper divisors (6913161).

11806839 is a wasteful number, since it uses less digits than its factorization.

11806839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 11806839 is about 3436.1081182058. The cubic root of 11806839 is about 227.7077858495.

The spelling of 11806839 in words is "eleven million, eight hundred six thousand, eight hundred thirty-nine".