1823863 has 2 divisors, whose sum is σ = 1823864. Its totient is φ = 1823862.

The previous prime is 1823849. The next prime is 1823903. The reversal of 1823863 is 3683281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1823863 - 2¹⁷ = 1692791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1823813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911931 + 911932.

It is an arithmetic number, because the mean of its divisors is an integer number (911932).

2^1823863 is an apocalyptic number.

1823863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1823863 is an equidigital number, since it uses as much as digits as its factorization.

1823863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 1823863 is about 1350.5047204656. The cubic root of 1823863 is about 122.1792357861.

The spelling of 1823863 in words is "one million, eight hundred twenty-three thousand, eight hundred sixty-three".