572406647 has 4 divisors (see below), whose sum is σ = 572492040. Its totient is φ = 572321256.

The previous prime is 572406623. The next prime is 572406649. The reversal of 572406647 is 746604275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572406647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572406649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31697 + ... + 46362.

It is an arithmetic number, because the mean of its divisors is an integer number (143123010).

Almost surely, 2^572406647 is an apocalyptic number.

572406647 is a deficient number, since it is larger than the sum of its proper divisors (85393).

572406647 is an equidigital number, since it uses as much as digits as its factorization.

572406647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85392.

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 572406647 is about 23925.0213584022. The cubic root of 572406647 is about 830.2997161160.

The spelling of 572406647 in words is "five hundred seventy-two million, four hundred six thousand, six hundred forty-seven".