1822863 has 16 divisors (see below), whose sum is σ = 2825216. Its totient is φ = 1023840.

The previous prime is 1822837. The next prime is 1822867. The reversal of 1822863 is 3682281.

It is not a de Polignac number, because 1822863 - 2¹⁴ = 1806479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1822863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (176576).

2^1822863 is an apocalyptic number.

1822863 is a deficient number, since it is larger than the sum of its proper divisors (1002353).

1822863 is a wasteful number, since it uses less digits than its factorization.

1822863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494.

The product of its digits is 4608, while the sum is 30.

The square root of 1822863 is about 1350.1344377506. The cubic root of 1822863 is about 122.1569019499.

The spelling of 1822863 in words is "one million, eight hundred twenty-two thousand, eight hundred sixty-three".