564421073 has 8 divisors (see below), whose sum is σ = 577825920. Its totient is φ = 551074480.

The previous prime is 564421069. The next prime is 564421079. The reversal of 564421073 is 370124465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 564421073 - 2² = 564421069 is a prime.

It is a super-2 number, since 2×564421073² = 637142295292942658, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (564421079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5363 + ... + 34023.

It is an arithmetic number, because the mean of its divisors is an integer number (72228240).

Almost surely, 2^564421073 is an apocalyptic number.

It is an amenable number.

564421073 is a deficient number, since it is larger than the sum of its proper divisors (13404847).

564421073 is a wasteful number, since it uses less digits than its factorization.

564421073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29127.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 564421073 is about 23757.5477059397. The cubic root of 564421073 is about 826.4204841824.

The spelling of 564421073 in words is "five hundred sixty-four million, four hundred twenty-one thousand, seventy-three".