2259823 has 2 divisors, whose sum is σ = 2259824. Its totient is φ = 2259822.

The previous prime is 2259811. The next prime is 2259833. The reversal of 2259823 is 3289522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2259823 - 2⁵ = 2259791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2259833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129911 + 1129912.

It is an arithmetic number, because the mean of its divisors is an integer number (1129912).

2^2259823 is an apocalyptic number.

2259823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2259823 is an equidigital number, since it uses as much as digits as its factorization.

2259823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 2259823 is about 1503.2707673603. The cubic root of 2259823 is about 131.2274857829.

The spelling of 2259823 in words is "two million, two hundred fifty-nine thousand, eight hundred twenty-three".