824849985 has 16 divisors (see below), whose sum is σ = 1325528640. Its totient is φ = 437997120.

The previous prime is 824849959. The next prime is 824849999. The reversal of 824849985 is 589948428.

It is not a de Polignac number, because 824849985 - 2¹¹ = 824847937 is a prime.

It is a Curzon number.

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, 116631 + ... + 123500.

It is an arithmetic number, because the mean of its divisors is an integer number (82845540).

Almost surely, 2^824849985 is an apocalyptic number.

It is an amenable number.

824849985 is a deficient number, since it is larger than the sum of its proper divisors (500678655).

824849985 is a wasteful number, since it uses less digits than its factorization.

824849985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240368.

The product of its digits is 6635520, while the sum is 57.

The square root of 824849985 is about 28720.2016880105. The cubic root of 824849985 is about 937.8318768122.

The spelling of 824849985 in words is "eight hundred twenty-four million, eight hundred forty-nine thousand, nine hundred eighty-five".