4591089 has 6 divisors (see below), whose sum is σ = 6631586. Its totient is φ = 3060720.

The previous prime is 4591079. The next prime is 4591091. The reversal of 4591089 is 9801954.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 950625 = 1908^2 + 975^2 .

It is not a de Polignac number, because 4591089 - 2⁹ = 4590577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4591009) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 255052 + ... + 255069.

Almost surely, 2^4591089 is an apocalyptic number.

It is an amenable number.

4591089 is a deficient number, since it is larger than the sum of its proper divisors (2040497).

4591089 is a wasteful number, since it uses less digits than its factorization.

4591089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510127 (or 510124 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4591089 is about 2142.6826643253. The cubic root of 4591089 is about 166.2028897741.

The spelling of 4591089 in words is "four million, five hundred ninety-one thousand, eighty-nine".