578578 has 48 divisors (see below), whose sum is σ = 1237824. Its totient is φ = 195840.

The previous prime is 578573. The next prime is 578581. The reversal of 578578 is 875875.

Its product of digits (78400) is a multiple of the sum of its prime divisors (50).

It is a self number, because there is not a number n which added to its sum of digits gives 578578.

It is not an unprimeable number, because it can be changed into a prime (578573) by changing a digit.

578578 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34026 + ... + 34042.

It is an arithmetic number, because the mean of its divisors is an integer number (25788).

2⁵⁷⁸⁵⁷⁸ is an apocalyptic number.

578578 is an abundant number, since it is smaller than the sum of its proper divisors (659246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

578578 is a wasteful number, since it uses less digits than its factorization.

578578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 50 counting only the distinct ones).

The product of its digits is 78400, while the sum is 40.

The square root of 578578 is about 760.6431489207. The cubic root of 578578 is about 83.3272991186.

It can be divided in two parts, 578 and 578, that added together give a square (1156 = 34²).

The spelling of 578578 in words is "five hundred seventy-eight thousand, five hundred seventy-eight".