560421 has 12 divisors (see below), whose sum is σ = 821548. Its totient is φ = 368064.

The previous prime is 560411. The next prime is 560437. The reversal of 560421 is 124065.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 152100 + 408321 = 390^2 + 639^2 .

It is not a de Polignac number, because 560421 - 2⁷ = 560293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 560394 and 560403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (560411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231 + ... + 1083.

2⁵⁶⁰⁴²¹ is an apocalyptic number.

It is an amenable number.

560421 is a deficient number, since it is larger than the sum of its proper divisors (261127).

560421 is a wasteful number, since it uses less digits than its factorization.

560421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 560421 is about 748.6127169639. The cubic root of 560421 is about 82.4463563116.

Adding to 560421 its reverse (124065), we get a palindrome (684486).

It can be divided in two parts, 5604 and 21, that added together give a square (5625 = 75²).

The spelling of 560421 in words is "five hundred sixty thousand, four hundred twenty-one".