7297897 has 2 divisors, whose sum is σ = 7297898. Its totient is φ = 7297896.

The previous prime is 7297891. The next prime is 7297921. The reversal of 7297897 is 7987927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6007401 + 1290496 = 2451^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 7297897 - 2³ = 7297889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7297897.

It is not a weakly prime, because it can be changed into another prime (7297891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3648948 + 3648949.

It is an arithmetic number, because the mean of its divisors is an integer number (3648949).

Almost surely, 2^7297897 is an apocalyptic number.

It is an amenable number.

7297897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7297897 is an equidigital number, since it uses as much as digits as its factorization.

7297897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 49.

The square root of 7297897 is about 2701.4620115782. The cubic root of 7297897 is about 193.9691115310.

It can be divided in two parts, 72 and 97897, that added together give a square (97969 = 313²).

The spelling of 7297897 in words is "seven million, two hundred ninety-seven thousand, eight hundred ninety-seven".