11228897 has 2 divisors, whose sum is σ = 11228898. Its totient is φ = 11228896.

The previous prime is 11228881. The next prime is 11228929. The reversal of 11228897 is 79882211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10916416 + 312481 = 3304^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 11228897 - 2⁴ = 11228881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11228897.

It is not a weakly prime, because it can be changed into another prime (11225897) 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, 5614448 + 5614449.

It is an arithmetic number, because the mean of its divisors is an integer number (5614449).

Almost surely, 2^11228897 is an apocalyptic number.

It is an amenable number.

11228897 is a deficient number, since it is larger than the sum of its proper divisors (1).

11228897 is an equidigital number, since it uses as much as digits as its factorization.

11228897 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 11228897 is about 3350.9546400988. The cubic root of 11228897 is about 223.9300443221.

The spelling of 11228897 in words is "eleven million, two hundred twenty-eight thousand, eight hundred ninety-seven".