299635985 has 16 divisors (see below), whose sum is σ = 412896960. Its totient is φ = 206447040.

The previous prime is 299635967. The next prime is 299636009. The reversal of 299635985 is 589536992.

It is not a de Polignac number, because 299635985 - 2¹² = 299631889 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 299635985.

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, 142322 + ... + 144411.

It is an arithmetic number, because the mean of its divisors is an integer number (25806060).

Almost surely, 2^299635985 is an apocalyptic number.

It is an amenable number.

299635985 is a deficient number, since it is larger than the sum of its proper divisors (113260975).

299635985 is a wasteful number, since it uses less digits than its factorization.

299635985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286768.

The product of its digits is 5248800, while the sum is 56.

The square root of 299635985 is about 17309.9966782204. The cubic root of 299635985 is about 669.1620809018.

The spelling of 299635985 in words is "two hundred ninety-nine million, six hundred thirty-five thousand, nine hundred eighty-five".