99785 has 8 divisors (see below), whose sum is σ = 136896. Its totient is φ = 68400.

The previous prime is 99767. The next prime is 99787. The reversal of 99785 is 58799.

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

It is not a de Polignac number, because 99785 - 2⁶ = 99721 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 99785.

It is not an unprimeable number, because it can be changed into a prime (99787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391 + ... + 1460.

It is an arithmetic number, because the mean of its divisors is an integer number (17112).

2⁹⁹⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

99785 is a deficient number, since it is larger than the sum of its proper divisors (37111).

99785 is a wasteful number, since it uses less digits than its factorization.

99785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863.

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

The square root of 99785 is about 315.8876382513. The cubic root of 99785 is about 46.3825997479.

The spelling of 99785 in words is "ninety-nine thousand, seven hundred eighty-five".