298640297 has 2 divisors, whose sum is σ = 298640298. Its totient is φ = 298640296.

The previous prime is 298640281. The next prime is 298640341. The reversal of 298640297 is 792046892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204375616 + 94264681 = 14296^2 + 9709^2 .

It is a cyclic number.

It is not a de Polignac number, because 298640297 - 2⁴ = 298640281 is a prime.

It is not a weakly prime, because it can be changed into another prime (298640897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149320148 + 149320149.

It is an arithmetic number, because the mean of its divisors is an integer number (149320149).

Almost surely, 2^298640297 is an apocalyptic number.

It is an amenable number.

298640297 is a deficient number, since it is larger than the sum of its proper divisors (1).

298640297 is an equidigital number, since it uses as much as digits as its factorization.

298640297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 298640297 is about 17281.2122549317. The cubic root of 298640297 is about 668.4200516134.

The spelling of 298640297 in words is "two hundred ninety-eight million, six hundred forty thousand, two hundred ninety-seven".