623589 has 8 divisors (see below), whose sum is σ = 839520. Its totient is φ = 411696.

The previous prime is 623563. The next prime is 623591. The reversal of 623589 is 985326.

It is a happy number.

623589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 623589 - 2¹¹ = 621541 is a prime.

623589 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (104940).

2⁶²³⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

623589 is a deficient number, since it is larger than the sum of its proper divisors (215931).

623589 is a wasteful number, since it uses less digits than its factorization.

623589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019.

The product of its digits is 12960, while the sum is 33.

The square root of 623589 is about 789.6765160495. The cubic root of 623589 is about 85.4344081595.

The spelling of 623589 in words is "six hundred twenty-three thousand, five hundred eighty-nine".