297447313 has 2 divisors, whose sum is σ = 297447314. Its totient is φ = 297447312.

The previous prime is 297447259. The next prime is 297447347. The reversal of 297447313 is 313744792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283181584 + 14265729 = 16828^2 + 3777^2 .

It is a cyclic number.

It is not a de Polignac number, because 297447313 - 2²¹ = 295350161 is a prime.

It is not a weakly prime, because it can be changed into another prime (297447013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148723656 + 148723657.

It is an arithmetic number, because the mean of its divisors is an integer number (148723657).

Almost surely, 2^297447313 is an apocalyptic number.

It is an amenable number.

297447313 is a deficient number, since it is larger than the sum of its proper divisors (1).

297447313 is an equidigital number, since it uses as much as digits as its factorization.

297447313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 297447313 is about 17246.6609232048. The cubic root of 297447313 is about 667.5288137674.

The spelling of 297447313 in words is "two hundred ninety-seven million, four hundred forty-seven thousand, three hundred thirteen".