564870 has 32 divisors (see below), whose sum is σ = 1428480. Its totient is φ = 142560.

The previous prime is 564827. The next prime is 564871. The reversal of 564870 is 78465.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564871) by changing a digit.

564870 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75 + ... + 1065.

It is an arithmetic number, because the mean of its divisors is an integer number (44640).

2⁵⁶⁴⁸⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714240).

564870 is an abundant number, since it is smaller than the sum of its proper divisors (863610).

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

564870 is a wasteful number, since it uses less digits than its factorization.

564870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 564870 is about 751.5783392302. The cubic root of 564870 is about 82.6639531136.

The spelling of 564870 in words is "five hundred sixty-four thousand, eight hundred seventy".