4433985 has 12 divisors (see below), whose sum is σ = 7685652. Its totient is φ = 2364768.

The previous prime is 4433981. The next prime is 4433999. The reversal of 4433985 is 5893344.

It can be written as a sum of positive squares in 2 ways, for example, as 2471184 + 1962801 = 1572^2 + 1401^2 .

It is not a de Polignac number, because 4433985 - 2² = 4433981 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4433981) 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, 49222 + ... + 49311.

It is an arithmetic number, because the mean of its divisors is an integer number (640471).

Almost surely, 2^4433985 is an apocalyptic number.

4433985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4433985 is a deficient number, since it is larger than the sum of its proper divisors (3251667).

4433985 is a wasteful number, since it uses less digits than its factorization.

4433985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98544 (or 98541 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 4433985 is about 2105.7029705065. The cubic root of 4433985 is about 164.2850609390.

The spelling of 4433985 in words is "four million, four hundred thirty-three thousand, nine hundred eighty-five".