11806539 has 16 divisors (see below), whose sum is σ = 16124160. Its totient is φ = 7682400.

The previous prime is 11806537. The next prime is 11806547. The reversal of 11806539 is 93560811.

11806539 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 11806539 - 2¹ = 11806537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11806537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30157 + ... + 30545.

It is an arithmetic number, because the mean of its divisors is an integer number (1007760).

Almost surely, 2^11806539 is an apocalyptic number.

11806539 is a deficient number, since it is larger than the sum of its proper divisors (4317621).

11806539 is a wasteful number, since it uses less digits than its factorization.

11806539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 11806539 is about 3436.0644638889. The cubic root of 11806539 is about 227.7058572239.

The spelling of 11806539 in words is "eleven million, eight hundred six thousand, five hundred thirty-nine".