591489 has 16 divisors (see below), whose sum is σ = 923200. Its totient is φ = 373248.

The previous prime is 591469. The next prime is 591499. The reversal of 591489 is 984195.

It is not a de Polignac number, because 591489 - 2⁵ = 591457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (591469) 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, 64 + ... + 1089.

It is an arithmetic number, because the mean of its divisors is an integer number (57700).

2⁵⁹¹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

591489 is a deficient number, since it is larger than the sum of its proper divisors (331711).

591489 is a wasteful number, since it uses less digits than its factorization.

591489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181 (or 1175 counting only the distinct ones).

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

The square root of 591489 is about 769.0832204645. The cubic root of 591489 is about 83.9425627755.

The spelling of 591489 in words is "five hundred ninety-one thousand, four hundred eighty-nine".