564039 has 18 divisors (see below), whose sum is σ = 948480. Its totient is φ = 322056.

The previous prime is 564017. The next prime is 564041. The reversal of 564039 is 930465.

It is a happy number.

564039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-564039 is a prime.

564039 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564049) 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, 199 + ... + 1080.

2⁵⁶⁴⁰³⁹ is an apocalyptic number.

564039 is a deficient number, since it is larger than the sum of its proper divisors (384441).

564039 is a wasteful number, since it uses less digits than its factorization.

564039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 564039 is about 751.0252991744. The cubic root of 564039 is about 82.6233966089.

It can be divided in two parts, 56 and 4039, that added together give a triangular number (4095 = T₉₀).

The spelling of 564039 in words is "five hundred sixty-four thousand, thirty-nine".