562664721 has 8 divisors (see below), whose sum is σ = 750331584. Its totient is φ = 375053840.

The previous prime is 562664717. The next prime is 562664723. The reversal of 562664721 is 127466265.

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 562664721 - 2² = 562664717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 562664721.

It is not an unprimeable number, because it can be changed into a prime (562664723) 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 7 ways as a sum of consecutive naturals, for example, 24916 + ... + 41786.

It is an arithmetic number, because the mean of its divisors is an integer number (93791448).

Almost surely, 2^562664721 is an apocalyptic number.

It is an amenable number.

562664721 is a deficient number, since it is larger than the sum of its proper divisors (187666863).

562664721 is a wasteful number, since it uses less digits than its factorization.

562664721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27991.

The product of its digits is 120960, while the sum is 39.

The square root of 562664721 is about 23720.5548206613. The cubic root of 562664721 is about 825.5623816571.

The spelling of 562664721 in words is "five hundred sixty-two million, six hundred sixty-four thousand, seven hundred twenty-one".