564335421 has 16 divisors (see below), whose sum is σ = 812103936. Its totient is φ = 346522176.

The previous prime is 564335411. The next prime is 564335437. The reversal of 564335421 is 124533465.

It is not a de Polignac number, because 564335421 - 2¹¹ = 564333373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564335411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2431 + ... + 33683.

It is an arithmetic number, because the mean of its divisors is an integer number (50756496).

Almost surely, 2^564335421 is an apocalyptic number.

It is an amenable number.

564335421 is a deficient number, since it is larger than the sum of its proper divisors (247768515).

564335421 is a wasteful number, since it uses less digits than its factorization.

564335421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31732.

The product of its digits is 43200, while the sum is 33.

The square root of 564335421 is about 23755.7450104180. The cubic root of 564335421 is about 826.3786784268.

Adding to 564335421 its reverse (124533465), we get a palindrome (688868886).

The spelling of 564335421 in words is "five hundred sixty-four million, three hundred thirty-five thousand, four hundred twenty-one".