798905 has 8 divisors (see below), whose sum is σ = 1000512. Its totient is φ = 611248.

The previous prime is 798887. The next prime is 798911. The reversal of 798905 is 509897.

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

It is not a de Polignac number, because 798905 - 2⁸ = 798649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3359 + ... + 3588.

It is an arithmetic number, because the mean of its divisors is an integer number (125064).

2⁷⁹⁸⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

798905 is a deficient number, since it is larger than the sum of its proper divisors (201607).

798905 is a wasteful number, since it uses less digits than its factorization.

798905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6975.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 798905 is about 893.8148577866. The cubic root of 798905 is about 92.7894028352.

The spelling of 798905 in words is "seven hundred ninety-eight thousand, nine hundred five".