798789 has 8 divisors (see below), whose sum is σ = 1072800. Its totient is φ = 528656.

The previous prime is 798781. The next prime is 798799. The reversal of 798789 is 987897.

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

It is a cyclic number.

It is not a de Polignac number, because 798789 - 2³ = 798781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447 + ... + 1340.

It is an arithmetic number, because the mean of its divisors is an integer number (134100).

2⁷⁹⁸⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

798789 is a deficient number, since it is larger than the sum of its proper divisors (274011).

798789 is a wasteful number, since it uses less digits than its factorization.

798789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939.

The product of its digits is 254016, while the sum is 48.

The square root of 798789 is about 893.7499650350. The cubic root of 798789 is about 92.7849116497.

The spelling of 798789 in words is "seven hundred ninety-eight thousand, seven hundred eighty-nine".