11286839 has 2 divisors, whose sum is σ = 11286840. Its totient is φ = 11286838.

The previous prime is 11286811. The next prime is 11286853. The reversal of 11286839 is 93868211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11286839 - 2¹⁶ = 11221303 is a prime.

It is a super-2 number, since 2×11286839² = 254785469223842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11282839) 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, 5643419 + 5643420.

It is an arithmetic number, because the mean of its divisors is an integer number (5643420).

Almost surely, 2^11286839 is an apocalyptic number.

11286839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11286839 is an equidigital number, since it uses as much as digits as its factorization.

11286839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 11286839 is about 3359.5891117814. The cubic root of 11286839 is about 224.3145493220.

The spelling of 11286839 in words is "eleven million, two hundred eighty-six thousand, eight hundred thirty-nine".