2297257 has 2 divisors, whose sum is σ = 2297258. Its totient is φ = 2297256.

The previous prime is 2297249. The next prime is 2297291. The reversal of 2297257 is 7527922.

It is an a-pointer prime, because the next prime (2297291) can be obtained adding 2297257 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 326041 = 1404^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 2297257 - 2³ = 2297249 is a prime.

2297257 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2297297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1148628 + 1148629.

It is an arithmetic number, because the mean of its divisors is an integer number (1148629).

2^2297257 is an apocalyptic number.

It is an amenable number.

2297257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2297257 is an equidigital number, since it uses as much as digits as its factorization.

2297257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 34.

The square root of 2297257 is about 1515.6704786991. The cubic root of 2297257 is about 131.9481162791.

It can be divided in two parts, 22 and 97257, that added together give a palindrome (97279).

The spelling of 2297257 in words is "two million, two hundred ninety-seven thousand, two hundred fifty-seven".