11228839 has 2 divisors, whose sum is σ = 11228840. Its totient is φ = 11228838.

The previous prime is 11228831. The next prime is 11228869. The reversal of 11228839 is 93882211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11228839 - 2³ = 11228831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11228831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5614419 + 5614420.

It is an arithmetic number, because the mean of its divisors is an integer number (5614420).

Almost surely, 2^11228839 is an apocalyptic number.

11228839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11228839 is an equidigital number, since it uses as much as digits as its factorization.

11228839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 11228839 is about 3350.9459858374. The cubic root of 11228839 is about 223.9296587702.

The spelling of 11228839 in words is "eleven million, two hundred twenty-eight thousand, eight hundred thirty-nine".