564487 has 8 divisors (see below), whose sum is σ = 703872. Its totient is φ = 439800.

The previous prime is 564467. The next prime is 564491. The reversal of 564487 is 784465.

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 564487 - 2⁷ = 564359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3589 + ... + 3742.

It is an arithmetic number, because the mean of its divisors is an integer number (87984).

2⁵⁶⁴⁴⁸⁷ is an apocalyptic number.

564487 is a deficient number, since it is larger than the sum of its proper divisors (139385).

564487 is a wasteful number, since it uses less digits than its factorization.

564487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7349.

The product of its digits is 26880, while the sum is 34.

The square root of 564487 is about 751.3234989004. The cubic root of 564487 is about 82.6452659512.

Subtracting from 564487 its sum of digits (34), we obtain a triangular number (564453 = T₁₀₆₂).

The spelling of 564487 in words is "five hundred sixty-four thousand, four hundred eighty-seven".