7257097 has 2 divisors, whose sum is σ = 7257098. Its totient is φ = 7257096.

The previous prime is 7257091. The next prime is 7257127. The reversal of 7257097 is 7907527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4748041 + 2509056 = 2179^2 + 1584^2 .

It is an emirp because it is prime and its reverse (7907527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7257097 - 2¹⁹ = 6732809 is a prime.

It is a Chen prime.

7257097 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7257091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3628548 + 3628549.

It is an arithmetic number, because the mean of its divisors is an integer number (3628549).

Almost surely, 2^7257097 is an apocalyptic number.

It is an amenable number.

7257097 is a deficient number, since it is larger than the sum of its proper divisors (1).

7257097 is an equidigital number, since it uses as much as digits as its factorization.

7257097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30870, while the sum is 37.

The square root of 7257097 is about 2693.8999610231. The cubic root of 7257097 is about 193.6069645657.

Subtracting from 7257097 its product of nonzero digits (30870), we obtain a palindrome (7226227).

The spelling of 7257097 in words is "seven million, two hundred fifty-seven thousand, ninety-seven".