1798043 has 4 divisors (see below), whose sum is σ = 1936368. Its totient is φ = 1659720.

The previous prime is 1798037. The next prime is 1798051. The reversal of 1798043 is 3408971.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1798043 - 2¹² = 1793947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69143 + ... + 69168.

It is an arithmetic number, because the mean of its divisors is an integer number (484092).

2^1798043 is an apocalyptic number.

1798043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1798043 is a deficient number, since it is larger than the sum of its proper divisors (138325).

1798043 is a wasteful number, since it uses less digits than its factorization.

1798043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138324.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1798043 is about 1340.9112573172. The cubic root of 1798043 is about 121.5999392241.

The spelling of 1798043 in words is "one million, seven hundred ninety-eight thousand, forty-three".