226820669 has 2 divisors, whose sum is σ = 226820670. Its totient is φ = 226820668.

The previous prime is 226820663. The next prime is 226820717. The reversal of 226820669 is 966028622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159087769 + 67732900 = 12613^2 + 8230^2 .

It is a cyclic number.

It is not a de Polignac number, because 226820669 - 2⁴ = 226820653 is a prime.

It is a super-2 number, since 2×226820669² = 102895231771215122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226820663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113410334 + 113410335.

It is an arithmetic number, because the mean of its divisors is an integer number (113410335).

Almost surely, 2^226820669 is an apocalyptic number.

It is an amenable number.

226820669 is a deficient number, since it is larger than the sum of its proper divisors (1).

226820669 is an equidigital number, since it uses as much as digits as its factorization.

226820669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 226820669 is about 15060.5666892053. The cubic root of 226820669 is about 609.8563390079.

The spelling of 226820669 in words is "two hundred twenty-six million, eight hundred twenty thousand, six hundred sixty-nine".