1822943 has 2 divisors, whose sum is σ = 1822944. Its totient is φ = 1822942.

The previous prime is 1822939. The next prime is 1822963. The reversal of 1822943 is 3492281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1822943 - 2² = 1822939 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1822903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911471 + 911472.

It is an arithmetic number, because the mean of its divisors is an integer number (911472).

2^1822943 is an apocalyptic number.

1822943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1822943 is an equidigital number, since it uses as much as digits as its factorization.

1822943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 1822943 is about 1350.1640641048. The cubic root of 1822943 is about 122.1586889574.

It can be divided in two parts, 182 and 2943, that added together give a 5-th power (3125 = 5⁵).

The spelling of 1822943 in words is "one million, eight hundred twenty-two thousand, nine hundred forty-three".