4720809647 has 2 divisors, whose sum is σ = 4720809648. Its totient is φ = 4720809646.

The previous prime is 4720809629. The next prime is 4720809683. The reversal of 4720809647 is 7469080274.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4720809647 - 2¹⁰ = 4720808623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4720809617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2360404823 + 2360404824.

It is an arithmetic number, because the mean of its divisors is an integer number (2360404824).

Almost surely, 2^4720809647 is an apocalyptic number.

4720809647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4720809647 is an equidigital number, since it uses as much as digits as its factorization.

4720809647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 4720809647 is about 68708.1483304564. The cubic root of 4720809647 is about 1677.5372133331.

The spelling of 4720809647 in words is "four billion, seven hundred twenty million, eight hundred nine thousand, six hundred forty-seven".