2647332257 has 2 divisors, whose sum is σ = 2647332258. Its totient is φ = 2647332256.

The previous prime is 2647332209. The next prime is 2647332299. The reversal of 2647332257 is 7522337462.

2647332257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2031845776 + 615486481 = 45076^2 + 24809^2 .

It is a cyclic number.

It is not a de Polignac number, because 2647332257 - 2⁸ = 2647332001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2647334257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323666128 + 1323666129.

It is an arithmetic number, because the mean of its divisors is an integer number (1323666129).

Almost surely, 2^2647332257 is an apocalyptic number.

It is an amenable number.

2647332257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647332257 is an equidigital number, since it uses as much as digits as its factorization.

2647332257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 41.

The square root of 2647332257 is about 51452.2327698225. The cubic root of 2647332257 is about 1383.3629834389.

The spelling of 2647332257 in words is "two billion, six hundred forty-seven million, three hundred thirty-two thousand, two hundred fifty-seven".