297908689349 has 2 divisors, whose sum is σ = 297908689350. Its totient is φ = 297908689348.

The previous prime is 297908689259. The next prime is 297908689381. The reversal of 297908689349 is 943986809792.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297589888324 + 318801025 = 545518^2 + 17855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-297908689349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (297905689349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148954344674 + 148954344675.

It is an arithmetic number, because the mean of its divisors is an integer number (148954344675).

Almost surely, 2^297908689349 is an apocalyptic number.

It is an amenable number.

297908689349 is a deficient number, since it is larger than the sum of its proper divisors (1).

297908689349 is an equidigital number, since it uses as much as digits as its factorization.

297908689349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423263232, while the sum is 74.

The spelling of 297908689349 in words is "two hundred ninety-seven billion, nine hundred eight million, six hundred eighty-nine thousand, three hundred forty-nine".