1798993 has 8 divisors (see below), whose sum is σ = 2066688. Its totient is φ = 1533984.

The previous prime is 1798987. The next prime is 1798997. The reversal of 1798993 is 3998971.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1798993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1798997) 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, 1080 + ... + 2182.

It is an arithmetic number, because the mean of its divisors is an integer number (258336).

2^1798993 is an apocalyptic number.

It is an amenable number.

1798993 is a deficient number, since it is larger than the sum of its proper divisors (267695).

1798993 is a wasteful number, since it uses less digits than its factorization.

1798993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343.

The product of its digits is 122472, while the sum is 46.

The square root of 1798993 is about 1341.2654472549. The cubic root of 1798993 is about 121.6213513192.

The spelling of 1798993 in words is "one million, seven hundred ninety-eight thousand, nine hundred ninety-three".