578945 has 8 divisors (see below), whose sum is σ = 703080. Its totient is φ = 457600.

The previous prime is 578923. The next prime is 578957. The reversal of 578945 is 549875.

It can be written as a sum of positive squares in 4 ways, for example, as 26896 + 552049 = 164^2 + 743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 578945 - 2⁶ = 578881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 578899 and 578908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206 + ... + 1095.

It is an arithmetic number, because the mean of its divisors is an integer number (87885).

2⁵⁷⁸⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

578945 is a deficient number, since it is larger than the sum of its proper divisors (124135).

578945 is a wasteful number, since it uses less digits than its factorization.

578945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395.

The product of its digits is 50400, while the sum is 38.

The square root of 578945 is about 760.8843538935. The cubic root of 578945 is about 83.3449139462.

The spelling of 578945 in words is "five hundred seventy-eight thousand, nine hundred forty-five".