564769 has 4 divisors (see below), whose sum is σ = 569344. Its totient is φ = 560196.

The previous prime is 564761. The next prime is 564779. The reversal of 564769 is 967465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 967465 = 5 ⋅193493.

It is a cyclic number.

It is not a de Polignac number, because 564769 - 2³ = 564761 is a prime.

It is a super-2 number, since 2×564769² = 637928046722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 5³ + 6 + 7⁵ + 4⁷ + 6 + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2097 + ... + 2350.

It is an arithmetic number, because the mean of its divisors is an integer number (142336).

2⁵⁶⁴⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

564769 is a deficient number, since it is larger than the sum of its proper divisors (4575).

564769 is a wasteful number, since it uses less digits than its factorization.

564769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574.

The product of its digits is 45360, while the sum is 37.

The square root of 564769 is about 751.5111442953. The cubic root of 564769 is about 82.6590259876.

The spelling of 564769 in words is "five hundred sixty-four thousand, seven hundred sixty-nine".