2823869 has 2 divisors, whose sum is σ = 2823870. Its totient is φ = 2823868.

The previous prime is 2823857. The next prime is 2823889. The reversal of 2823869 is 9683282.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2788900 + 34969 = 1670^2 + 187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2823869 is a prime.

It is a super-2 number, since 2×2823869² = 15948472258322, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2823809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1411934 + 1411935.

It is an arithmetic number, because the mean of its divisors is an integer number (1411935).

2^2823869 is an apocalyptic number.

It is an amenable number.

2823869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2823869 is an equidigital number, since it uses as much as digits as its factorization.

2823869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 2823869 is about 1680.4371455071. The cubic root of 2823869 is about 141.3453466461.

The spelling of 2823869 in words is "two million, eight hundred twenty-three thousand, eight hundred sixty-nine".