227405869 has 2 divisors, whose sum is σ = 227405870. Its totient is φ = 227405868.

The previous prime is 227405837. The next prime is 227405909. The reversal of 227405869 is 968504722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201782025 + 25623844 = 14205^2 + 5062^2 .

It is a cyclic number.

It is not a de Polignac number, because 227405869 - 2⁵ = 227405837 is a prime.

It is a super-2 number, since 2×227405869² = 103426858511290322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227400869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113702934 + 113702935.

It is an arithmetic number, because the mean of its divisors is an integer number (113702935).

Almost surely, 2^227405869 is an apocalyptic number.

It is an amenable number.

227405869 is a deficient number, since it is larger than the sum of its proper divisors (1).

227405869 is an equidigital number, since it uses as much as digits as its factorization.

227405869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 227405869 is about 15079.9823938889. The cubic root of 227405869 is about 610.3803674475.

The spelling of 227405869 in words is "two hundred twenty-seven million, four hundred five thousand, eight hundred sixty-nine".