798999 has 4 divisors (see below), whose sum is σ = 1065336. Its totient is φ = 532664.

The previous prime is 798961. The next prime is 799003. The reversal of 798999 is 999897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999897 = 3 ⋅333299.

It is a cyclic number.

It is not a de Polignac number, because 798999 - 2⁷ = 798871 is a prime.

It is a D-number.

798999 is a modest number, since divided by 999 gives 798 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798929) 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, 133164 + ... + 133169.

It is an arithmetic number, because the mean of its divisors is an integer number (266334).

2⁷⁹⁸⁹⁹⁹ is an apocalyptic number.

798999 is a deficient number, since it is larger than the sum of its proper divisors (266337).

798999 is a wasteful number, since it uses less digits than its factorization.

798999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266336.

The product of its digits is 367416, while the sum is 51.

The square root of 798999 is about 893.8674398366. The cubic root of 798999 is about 92.7930419253.

The spelling of 798999 in words is "seven hundred ninety-eight thousand, nine hundred ninety-nine".