226078889 has 2 divisors, whose sum is σ = 226078890. Its totient is φ = 226078888.

The previous prime is 226078829. The next prime is 226078921. The reversal of 226078889 is 988870622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209757289 + 16321600 = 14483^2 + 4040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226078889 is a prime.

It is a super-2 number, since 2×226078889² = 102223328102948642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (226078819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113039444 + 113039445.

It is an arithmetic number, because the mean of its divisors is an integer number (113039445).

Almost surely, 2^226078889 is an apocalyptic number.

It is an amenable number.

226078889 is a deficient number, since it is larger than the sum of its proper divisors (1).

226078889 is an equidigital number, since it uses as much as digits as its factorization.

226078889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 226078889 is about 15035.9199585526. The cubic root of 226078889 is about 609.1908010755.

The spelling of 226078889 in words is "two hundred twenty-six million, seventy-eight thousand, eight hundred eighty-nine".