578628 has 18 divisors (see below), whose sum is σ = 1462734. Its totient is φ = 192864.

The previous prime is 578621. The next prime is 578647. The reversal of 578628 is 826875.

It can be written as a sum of positive squares in only one way, i.e., 412164 + 166464 = 642^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 16073 = 578628 / (5 + 7 + 8 + 6 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 578592 and 578601.

It is not an unprimeable number, because it can be changed into a prime (578621) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8001 + ... + 8072.

It is an arithmetic number, because the mean of its divisors is an integer number (81263).

2⁵⁷⁸⁶²⁸ is an apocalyptic number.

It is an amenable number.

578628 is an abundant number, since it is smaller than the sum of its proper divisors (884106).

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

578628 is a wasteful number, since it uses less digits than its factorization.

578628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16083 (or 16078 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 578628 is about 760.6760151339. The cubic root of 578628 is about 83.3296993971.

The spelling of 578628 in words is "five hundred seventy-eight thousand, six hundred twenty-eight".