4591689 has 16 divisors (see below), whose sum is σ = 6397440. Its totient is φ = 2926080.

The previous prime is 4591687. The next prime is 4591709. The reversal of 4591689 is 9861954.

It is not a de Polignac number, because 4591689 - 2¹ = 4591687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4591689.

It is not an unprimeable number, because it can be changed into a prime (4591687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8767 + ... + 9275.

It is an arithmetic number, because the mean of its divisors is an integer number (399840).

Almost surely, 2^4591689 is an apocalyptic number.

It is an amenable number.

4591689 is a deficient number, since it is larger than the sum of its proper divisors (1805751).

4591689 is a wasteful number, since it uses less digits than its factorization.

4591689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its digits is 77760, while the sum is 42.

The square root of 4591689 is about 2142.8226711513. The cubic root of 4591689 is about 166.2101296969.

The spelling of 4591689 in words is "four million, five hundred ninety-one thousand, six hundred eighty-nine".