564431 has 6 divisors (see below), whose sum is σ = 656640. Its totient is φ = 483756.

The previous prime is 564419. The next prime is 564437. The reversal of 564431 is 134465.

Added to its reverse (134465) it gives a square (698896 = 836²).

It is a happy number.

It is not a de Polignac number, because 564431 - 2⁶ = 564367 is a prime.

It is a super-2 number, since 2×564431² = 637164707522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 5 + 6³ + 4⁷ + 4⁷ + 3¹² + 1 .

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 564397 and 564406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5711 + ... + 5808.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2⁵⁶⁴⁴³¹ is an apocalyptic number.

564431 is a deficient number, since it is larger than the sum of its proper divisors (92209).

564431 is a wasteful number, since it uses less digits than its factorization.

564431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11533 (or 11526 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 564431 is about 751.2862304076. The cubic root of 564431 is about 82.6425329163.

Adding to 564431 its reverse (134465), we get a palindrome (698896).

The spelling of 564431 in words is "five hundred sixty-four thousand, four hundred thirty-one".