4581985 has 8 divisors (see below), whose sum is σ = 5576256. Its totient is φ = 3613680.

The previous prime is 4581977. The next prime is 4582049. The reversal of 4581985 is 5891854.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4581985 - 2³ = 4581977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6099 + ... + 6808.

It is an arithmetic number, because the mean of its divisors is an integer number (697032).

Almost surely, 2^4581985 is an apocalyptic number.

It is an amenable number.

4581985 is a deficient number, since it is larger than the sum of its proper divisors (994271).

4581985 is a wasteful number, since it uses less digits than its factorization.

4581985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12983.

The product of its digits is 57600, while the sum is 40.

The square root of 4581985 is about 2140.5571704582. The cubic root of 4581985 is about 166.0929585309.

The spelling of 4581985 in words is "four million, five hundred eighty-one thousand, nine hundred eighty-five".