578869 has 4 divisors (see below), whose sum is σ = 598860. Its totient is φ = 558880.

The previous prime is 578861. The next prime is 578881. The reversal of 578869 is 968875.

It is a happy number.

578869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 438244 + 140625 = 662^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 578869 - 2³ = 578861 is a prime.

It is a super-2 number, since 2×578869² = 670178638322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9952 + ... + 10009.

It is an arithmetic number, because the mean of its divisors is an integer number (149715).

2⁵⁷⁸⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

578869 is a deficient number, since it is larger than the sum of its proper divisors (19991).

578869 is a wasteful number, since it uses less digits than its factorization.

578869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19990.

The product of its digits is 120960, while the sum is 43.

The square root of 578869 is about 760.8344103680. The cubic root of 578869 is about 83.3412668003.

The spelling of 578869 in words is "five hundred seventy-eight thousand, eight hundred sixty-nine".