11528839 has 16 divisors (see below), whose sum is σ = 14688000. Its totient is φ = 8809344.

The previous prime is 11528833. The next prime is 11528849. The reversal of 11528839 is 93882511.

It is a cyclic number.

It is not a de Polignac number, because 11528839 - 2¹⁷ = 11397767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11528798 and 11528807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11528833) 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, 289 + ... + 4810.

It is an arithmetic number, because the mean of its divisors is an integer number (918000).

Almost surely, 2^11528839 is an apocalyptic number.

11528839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11528839 is a deficient number, since it is larger than the sum of its proper divisors (3159161).

11528839 is a wasteful number, since it uses less digits than its factorization.

11528839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142.

The product of its digits is 17280, while the sum is 37.

The square root of 11528839 is about 3395.4144076975. The cubic root of 11528839 is about 225.9063947857.

The spelling of 11528839 in words is "eleven million, five hundred twenty-eight thousand, eight hundred thirty-nine".