11228879 has 2 divisors, whose sum is σ = 11228880. Its totient is φ = 11228878.

The previous prime is 11228873. The next prime is 11228881. The reversal of 11228879 is 97882211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11228879 is a prime.

It is a Sophie Germain prime.

Together with 11228881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11228873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5614439 + 5614440.

It is an arithmetic number, because the mean of its divisors is an integer number (5614440).

Almost surely, 2^11228879 is an apocalyptic number.

11228879 is a deficient number, since it is larger than the sum of its proper divisors (1).

11228879 is an equidigital number, since it uses as much as digits as its factorization.

11228879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 38.

The square root of 11228879 is about 3350.9519542960. The cubic root of 11228879 is about 223.9299246682.

It can be divided in two parts, 1122 and 8879, that added together give a palindrome (10001).

The spelling of 11228879 in words is "eleven million, two hundred twenty-eight thousand, eight hundred seventy-nine".