8933985 has 12 divisors (see below), whose sum is σ = 15485652. Its totient is φ = 4764768.

The previous prime is 8933963. The next prime is 8933989. The reversal of 8933985 is 5893398.

It can be written as a sum of positive squares in 2 ways, for example, as 4422609 + 4511376 = 2103^2 + 2124^2 .

It is not a de Polignac number, because 8933985 - 2¹³ = 8925793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 198533 = 8933985 / (8 + 9 + 3 + 3 + 9 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 8933985.

It is not an unprimeable number, because it can be changed into a prime (8933989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99222 + ... + 99311.

It is an arithmetic number, because the mean of its divisors is an integer number (1290471).

Almost surely, 2^8933985 is an apocalyptic number.

It is an amenable number.

8933985 is a deficient number, since it is larger than the sum of its proper divisors (6551667).

8933985 is a wasteful number, since it uses less digits than its factorization.

8933985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198544 (or 198541 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 8933985 is about 2988.9772498298. The cubic root of 8933985 is about 207.4985532391.

The spelling of 8933985 in words is "eight million, nine hundred thirty-three thousand, nine hundred eighty-five".