567421 has 4 divisors (see below), whose sum is σ = 572832. Its totient is φ = 562012.

The previous prime is 567407. The next prime is 567439. The reversal of 567421 is 124765.

567421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 124765 = 5 ⋅24953.

It is a cyclic number.

It is not a de Polignac number, because 567421 - 2⁵ = 567389 is a prime.

It is a Duffinian number.

567421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (567401) 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, 2545 + ... + 2758.

It is an arithmetic number, because the mean of its divisors is an integer number (143208).

2⁵⁶⁷⁴²¹ is an apocalyptic number.

It is an amenable number.

567421 is a deficient number, since it is larger than the sum of its proper divisors (5411).

567421 is a wasteful number, since it uses less digits than its factorization.

567421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410.

The product of its digits is 1680, while the sum is 25.

The square root of 567421 is about 753.2735226994. The cubic root of 567421 is about 82.7882053571.

The spelling of 567421 in words is "five hundred sixty-seven thousand, four hundred twenty-one".