11288839 has 2 divisors, whose sum is σ = 11288840. Its totient is φ = 11288838.

The previous prime is 11288819. The next prime is 11288857. The reversal of 11288839 is 93888211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11288839 - 2⁵ = 11288807 is a prime.

It is a super-4 number, since 4×11288839⁴ (a number of 29 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11288819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5644419 + 5644420.

It is an arithmetic number, because the mean of its divisors is an integer number (5644420).

Almost surely, 2^11288839 is an apocalyptic number.

11288839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11288839 is an equidigital number, since it uses as much as digits as its factorization.

11288839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 40.

The square root of 11288839 is about 3359.8867540440. The cubic root of 11288839 is about 224.3277978676.

The spelling of 11288839 in words is "eleven million, two hundred eighty-eight thousand, eight hundred thirty-nine".