298817 has 2 divisors, whose sum is σ = 298818. Its totient is φ = 298816.

The previous prime is 298801. The next prime is 298819. The reversal of 298817 is 718892.

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., 215296 + 83521 = 464^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 298817 - 2⁴ = 298801 is a prime.

Together with 298819, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 298817.

It is not a weakly prime, because it can be changed into another prime (298819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149408 + 149409.

It is an arithmetic number, because the mean of its divisors is an integer number (149409).

2²⁹⁸⁸¹⁷ is an apocalyptic number.

It is an amenable number.

298817 is a deficient number, since it is larger than the sum of its proper divisors (1).

298817 is an equidigital number, since it uses as much as digits as its factorization.

298817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 298817 is about 546.6415644643. The cubic root of 298817 is about 66.8551858497.

The spelling of 298817 in words is "two hundred ninety-eight thousand, eight hundred seventeen".