4991585 has 8 divisors (see below), whose sum is σ = 6305280. Its totient is φ = 3783024.

The previous prime is 4991573. The next prime is 4991587. The reversal of 4991585 is 5851994.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4991585 - 2¹⁶ = 4926049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4991587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26177 + ... + 26366.

It is an arithmetic number, because the mean of its divisors is an integer number (788160).

Almost surely, 2^4991585 is an apocalyptic number.

It is an amenable number.

4991585 is a deficient number, since it is larger than the sum of its proper divisors (1313695).

4991585 is a wasteful number, since it uses less digits than its factorization.

4991585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52567.

The product of its digits is 64800, while the sum is 41.

The square root of 4991585 is about 2234.1855339251. The cubic root of 4991585 is about 170.9016111502.

The spelling of 4991585 in words is "four million, nine hundred ninety-one thousand, five hundred eighty-five".