11285839 has 2 divisors, whose sum is σ = 11285840. Its totient is φ = 11285838.

The previous prime is 11285837. The next prime is 11285849. The reversal of 11285839 is 93858211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11285839 - 2¹ = 11285837 is a prime.

Together with 11285837, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11285798 and 11285807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11285831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642919 + 5642920.

It is an arithmetic number, because the mean of its divisors is an integer number (5642920).

Almost surely, 2^11285839 is an apocalyptic number.

11285839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11285839 is an equidigital number, since it uses as much as digits as its factorization.

11285839 is an odious number, because the sum of its binary digits is odd.

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

The square root of 11285839 is about 3359.4402807611. The cubic root of 11285839 is about 224.3079244623.

The spelling of 11285839 in words is "eleven million, two hundred eighty-five thousand, eight hundred thirty-nine".