900589 has 2 divisors, whose sum is σ = 900590. Its totient is φ = 900588.

The previous prime is 900587. The next prime is 900593. The reversal of 900589 is 985009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 887364 + 13225 = 942^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 900589 - 2¹ = 900587 is a prime.

It is a super-2 number, since 2×900589² = 1622121093842, which contains 22 as substring.

Together with 900587, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 900589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450294 + 450295.

It is an arithmetic number, because the mean of its divisors is an integer number (450295).

2⁹⁰⁰⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

900589 is a deficient number, since it is larger than the sum of its proper divisors (1).

900589 is an equidigital number, since it uses as much as digits as its factorization.

900589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 900589 is about 948.9936775343. The cubic root of 900589 is about 96.5699958397.

The spelling of 900589 in words is "nine hundred thousand, five hundred eighty-nine".