1798143 has 8 divisors (see below), whose sum is σ = 2438400. Its totient is φ = 1178328.

The previous prime is 1798133. The next prime is 1798151. The reversal of 1798143 is 3418971.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1798143 - 2⁴ = 1798127 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 8.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4903 + ... + 5256.

It is an arithmetic number, because the mean of its divisors is an integer number (304800).

2^1798143 is an apocalyptic number.

1798143 is a deficient number, since it is larger than the sum of its proper divisors (640257).

1798143 is a wasteful number, since it uses less digits than its factorization.

1798143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10221.

The product of its digits is 6048, while the sum is 33.

The square root of 1798143 is about 1340.9485448741. The cubic root of 1798143 is about 121.6021934839.

The spelling of 1798143 in words is "one million, seven hundred ninety-eight thousand, one hundred forty-three".