791985 has 16 divisors (see below), whose sum is σ = 1302336. Its totient is φ = 410688.

The previous prime is 791971. The next prime is 791993. The reversal of 791985 is 589197.

It is a happy number.

It is not a de Polignac number, because 791985 - 2⁴ = 791969 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 791985.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159 + ... + 1268.

It is an arithmetic number, because the mean of its divisors is an integer number (81396).

2⁷⁹¹⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

791985 is a deficient number, since it is larger than the sum of its proper divisors (510351).

791985 is a wasteful number, since it uses less digits than its factorization.

791985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472.

The product of its digits is 22680, while the sum is 39.

The square root of 791985 is about 889.9353909133. The cubic root of 791985 is about 92.5207160808.

The spelling of 791985 in words is "seven hundred ninety-one thousand, nine hundred eighty-five".