4491085 has 16 divisors (see below), whose sum is σ = 5702400. Its totient is φ = 3390016.

The previous prime is 4491079. The next prime is 4491089. The reversal of 4491085 is 5801944.

It is a happy number.

It is not a de Polignac number, because 4491085 - 2¹⁵ = 4458317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6486 + ... + 7144.

It is an arithmetic number, because the mean of its divisors is an integer number (356400).

Almost surely, 2^4491085 is an apocalyptic number.

It is an amenable number.

4491085 is a deficient number, since it is larger than the sum of its proper divisors (1211315).

4491085 is a wasteful number, since it uses less digits than its factorization.

4491085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 4491085 is about 2119.2180161560. The cubic root of 4491085 is about 164.9872656227.

The spelling of 4491085 in words is "four million, four hundred ninety-one thousand, eighty-five".