226890817 has 2 divisors, whose sum is σ = 226890818. Its totient is φ = 226890816.

The previous prime is 226890787. The next prime is 226890841. The reversal of 226890817 is 718098622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192210496 + 34680321 = 13864^2 + 5889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226890817 is a prime.

It is not a weakly prime, because it can be changed into another prime (226890217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113445408 + 113445409.

It is an arithmetic number, because the mean of its divisors is an integer number (113445409).

Almost surely, 2^226890817 is an apocalyptic number.

It is an amenable number.

226890817 is a deficient number, since it is larger than the sum of its proper divisors (1).

226890817 is an equidigital number, since it uses as much as digits as its factorization.

226890817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 226890817 is about 15062.8953724043. The cubic root of 226890817 is about 609.9192018755.

The spelling of 226890817 in words is "two hundred twenty-six million, eight hundred ninety thousand, eight hundred seventeen".