564987 has 8 divisors (see below), whose sum is σ = 769536. Its totient is φ = 368552.

The previous prime is 564983. The next prime is 564989. The reversal of 564987 is 789465.

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

It is a cyclic number.

It is not a de Polignac number, because 564987 - 2² = 564983 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 564987.

It is not an unprimeable number, because it can be changed into a prime (564983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1863 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (96192).

2⁵⁶⁴⁹⁸⁷ is an apocalyptic number.

564987 is a deficient number, since it is larger than the sum of its proper divisors (204549).

564987 is a wasteful number, since it uses less digits than its factorization.

564987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057.

The product of its digits is 60480, while the sum is 39.

The square root of 564987 is about 751.6561713975. The cubic root of 564987 is about 82.6696600402.

It can be divided in two parts, 564 and 987, that added together give a palindrome (1551).

The spelling of 564987 in words is "five hundred sixty-four thousand, nine hundred eighty-seven".