945589 has 2 divisors, whose sum is σ = 945590. Its totient is φ = 945588.

The previous prime is 945587. The next prime is 945601. The reversal of 945589 is 985549.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 321489 = 790^2 + 567^2 .

It is a cyclic number.

It is not a de Polignac number, because 945589 - 2¹ = 945587 is a prime.

Together with 945587, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472794 + 472795.

It is an arithmetic number, because the mean of its divisors is an integer number (472795).

2⁹⁴⁵⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

945589 is a deficient number, since it is larger than the sum of its proper divisors (1).

945589 is an equidigital number, since it uses as much as digits as its factorization.

945589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 40.

The square root of 945589 is about 972.4140064808. The cubic root of 945589 is about 98.1523729873.

Subtracting from 945589 its sum of digits (40), we obtain a palindrome (945549).

The spelling of 945589 in words is "nine hundred forty-five thousand, five hundred eighty-nine".