564736647 has 8 divisors (see below), whose sum is σ = 756551680. Its totient is φ = 374706360.

The previous prime is 564736637. The next prime is 564736657. The reversal of 564736647 is 746637465.

It is an interprime number because it is at equal distance from previous prime (564736637) and next prime (564736657).

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

It is not a de Polignac number, because 564736647 - 2⁷ = 564736519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 564736596 and 564736605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564736637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445447 + ... + 446712.

It is an arithmetic number, because the mean of its divisors is an integer number (94568960).

Almost surely, 2^564736647 is an apocalyptic number.

564736647 is a deficient number, since it is larger than the sum of its proper divisors (191815033).

564736647 is a wasteful number, since it uses less digits than its factorization.

564736647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892373.

The product of its digits is 2540160, while the sum is 48.

The square root of 564736647 is about 23764.1883303428. The cubic root of 564736647 is about 826.5744757327.

The spelling of 564736647 in words is "five hundred sixty-four million, seven hundred thirty-six thousand, six hundred forty-seven".