1798799 has 4 divisors (see below), whose sum is σ = 1811880. Its totient is φ = 1785720.

The previous prime is 1798781. The next prime is 1798801. The reversal of 1798799 is 9978971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9978971 = 19 ⋅525209.

It is a cyclic number.

It is not a de Polignac number, because 1798799 - 2⁸ = 1798543 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 (1798729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6332 + ... + 6609.

It is an arithmetic number, because the mean of its divisors is an integer number (452970).

2^1798799 is an apocalyptic number.

1798799 is a deficient number, since it is larger than the sum of its proper divisors (13081).

1798799 is a wasteful number, since it uses less digits than its factorization.

1798799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13080.

The product of its digits is 285768, while the sum is 50.

The square root of 1798799 is about 1341.1931255416. The cubic root of 1798799 is about 121.6169793566.

The spelling of 1798799 in words is "one million, seven hundred ninety-eight thousand, seven hundred ninety-nine".