578989 has 4 divisors (see below), whose sum is σ = 582624. Its totient is φ = 575356.

The previous prime is 578971. The next prime is 578999. The reversal of 578989 is 989875.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 578989 - 2⁵ = 578957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578959) 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 3 ways as a sum of consecutive naturals, for example, 1567 + ... + 1900.

It is an arithmetic number, because the mean of its divisors is an integer number (145656).

2⁵⁷⁸⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

578989 is a deficient number, since it is larger than the sum of its proper divisors (3635).

578989 is a wasteful number, since it uses less digits than its factorization.

578989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634.

The product of its digits is 181440, while the sum is 46.

The square root of 578989 is about 760.9132670679. The cubic root of 578989 is about 83.3470253058.

The spelling of 578989 in words is "five hundred seventy-eight thousand, nine hundred eighty-nine".