4647789257 has 2 divisors, whose sum is σ = 4647789258. Its totient is φ = 4647789256.

The previous prime is 4647789229. The next prime is 4647789317. The reversal of 4647789257 is 7529877464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3411844921 + 1235944336 = 58411^2 + 35156^2 .

It is a cyclic number.

It is not a de Polignac number, because 4647789257 - 2¹⁴ = 4647772873 is a prime.

It is a super-2 number, since 2×4647789257² = 43203889954969224098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4647789196 and 4647789205.

It is not a weakly prime, because it can be changed into another prime (4647789457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2323894628 + 2323894629.

It is an arithmetic number, because the mean of its divisors is an integer number (2323894629).

Almost surely, 2^4647789257 is an apocalyptic number.

It is an amenable number.

4647789257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4647789257 is an equidigital number, since it uses as much as digits as its factorization.

4647789257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23708160, while the sum is 59.

The square root of 4647789257 is about 68174.6966036520. The cubic root of 4647789257 is about 1668.8429789132.

The spelling of 4647789257 in words is "four billion, six hundred forty-seven million, seven hundred eighty-nine thousand, two hundred fifty-seven".