2569823 has 2 divisors, whose sum is σ = 2569824. Its totient is φ = 2569822.

The previous prime is 2569817. The next prime is 2569841. The reversal of 2569823 is 3289652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2569823 - 2⁶ = 2569759 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 5⁸ + 6² + 9 + 8⁷ + 2¹⁶ + 3⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2569423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284911 + 1284912.

It is an arithmetic number, because the mean of its divisors is an integer number (1284912).

2^2569823 is an apocalyptic number.

2569823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2569823 is an equidigital number, since it uses as much as digits as its factorization.

2569823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 2569823 is about 1603.0667484543. The cubic root of 2569823 is about 136.9728221436.

The spelling of 2569823 in words is "two million, five hundred sixty-nine thousand, eight hundred twenty-three".