578825 has 18 divisors (see below), whose sum is σ = 782874. Its totient is φ = 424320.

The previous prime is 578821. The next prime is 578827. The reversal of 578825 is 528875.

It can be written as a sum of positive squares in 9 ways, for example, as 344569 + 234256 = 587^2 + 484^2 .

It is not a de Polignac number, because 578825 - 2² = 578821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 578825.

It is not an unprimeable number, because it can be changed into a prime (578821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4157 + ... + 4293.

It is an arithmetic number, because the mean of its divisors is an integer number (43493).

2⁵⁷⁸⁸²⁵ is an apocalyptic number.

It is an amenable number.

578825 is a deficient number, since it is larger than the sum of its proper divisors (204049).

578825 is a wasteful number, since it uses less digits than its factorization.

578825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 155 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 578825 is about 760.8054941968. The cubic root of 578825 is about 83.3391551488.

The spelling of 578825 in words is "five hundred seventy-eight thousand, eight hundred twenty-five".