785899 has 4 divisors (see below), whose sum is σ = 797040. Its totient is φ = 774760.

The previous prime is 785879. The next prime is 785903. The reversal of 785899 is 998587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998587 = 101 ⋅9887.

It is a cyclic number.

It is not a de Polignac number, because 785899 - 2¹⁷ = 654827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (785809) 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, 5464 + ... + 5605.

It is an arithmetic number, because the mean of its divisors is an integer number (199260).

2⁷⁸⁵⁸⁹⁹ is an apocalyptic number.

785899 is a deficient number, since it is larger than the sum of its proper divisors (11141).

785899 is a wasteful number, since it uses less digits than its factorization.

785899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11140.

The product of its digits is 181440, while the sum is 46.

The square root of 785899 is about 886.5094472142. The cubic root of 785899 is about 92.2831149489.

The spelling of 785899 in words is "seven hundred eighty-five thousand, eight hundred ninety-nine".