4647575221 has 2 divisors, whose sum is σ = 4647575222. Its totient is φ = 4647575220.

The previous prime is 4647575197. The next prime is 4647575249. The reversal of 4647575221 is 1225757464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4327666225 + 319908996 = 65785^2 + 17886^2 .

It is a cyclic number.

It is not a de Polignac number, because 4647575221 - 2⁵ = 4647575189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4647575021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2323787610 + 2323787611.

It is an arithmetic number, because the mean of its divisors is an integer number (2323787611).

Almost surely, 2^4647575221 is an apocalyptic number.

It is an amenable number.

4647575221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4647575221 is an equidigital number, since it uses as much as digits as its factorization.

4647575221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 43.

The square root of 4647575221 is about 68173.1268242847. The cubic root of 4647575221 is about 1668.8173611453.

The spelling of 4647575221 in words is "four billion, six hundred forty-seven million, five hundred seventy-five thousand, two hundred twenty-one".