572646647 has 4 divisors (see below), whose sum is σ = 572726880. Its totient is φ = 572566416.

The previous prime is 572646619. The next prime is 572646653. The reversal of 572646647 is 746646275.

572646647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 572646647 - 2⁶ = 572646583 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 (572640647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28238 + ... + 44075.

It is an arithmetic number, because the mean of its divisors is an integer number (143181720).

Almost surely, 2^572646647 is an apocalyptic number.

572646647 is a deficient number, since it is larger than the sum of its proper divisors (80233).

572646647 is an equidigital number, since it uses as much as digits as its factorization.

572646647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80232.

The product of its digits is 1693440, while the sum is 47.

The square root of 572646647 is about 23930.0365022705. The cubic root of 572646647 is about 830.4157432382.

The spelling of 572646647 in words is "five hundred seventy-two million, six hundred forty-six thousand, six hundred forty-seven".