2321863 has 2 divisors, whose sum is σ = 2321864. Its totient is φ = 2321862.

The previous prime is 2321821. The next prime is 2321881. The reversal of 2321863 is 3681232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2321863 - 2²¹ = 224711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2321563) 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, 1160931 + 1160932.

It is an arithmetic number, because the mean of its divisors is an integer number (1160932).

2^2321863 is an apocalyptic number.

2321863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321863 is an equidigital number, since it uses as much as digits as its factorization.

2321863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 2321863 is about 1523.7660581598. The cubic root of 2321863 is about 132.4175445211.

The spelling of 2321863 in words is "two million, three hundred twenty-one thousand, eight hundred sixty-three".