1798943 has 2 divisors, whose sum is σ = 1798944. Its totient is φ = 1798942.

The previous prime is 1798931. The next prime is 1798963. The reversal of 1798943 is 3498971.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1798943 - 2¹⁴ = 1782559 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1798943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1798913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899471 + 899472.

It is an arithmetic number, because the mean of its divisors is an integer number (899472).

2^1798943 is an apocalyptic number.

1798943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1798943 is an equidigital number, since it uses as much as digits as its factorization.

1798943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 1798943 is about 1341.2468080111. The cubic root of 1798943 is about 121.6202245547.

The spelling of 1798943 in words is "one million, seven hundred ninety-eight thousand, nine hundred forty-three".