2223869 has 2 divisors, whose sum is σ = 2223870. Its totient is φ = 2223868.

The previous prime is 2223857. The next prime is 2223883. The reversal of 2223869 is 9683222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2067844 + 156025 = 1438^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223869 - 2⁴ = 2223853 is a prime.

It is a super-2 number, since 2×2223869² = 9891186658322, 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 (2223829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111934 + 1111935.

It is an arithmetic number, because the mean of its divisors is an integer number (1111935).

2^2223869 is an apocalyptic number.

It is an amenable number.

2223869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223869 is an equidigital number, since it uses as much as digits as its factorization.

2223869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 2223869 is about 1491.2642287670. The cubic root of 2223869 is about 130.5278146649.

The spelling of 2223869 in words is "two million, two hundred twenty-three thousand, eight hundred sixty-nine".