298819 has 2 divisors, whose sum is σ = 298820. Its totient is φ = 298818.

The previous prime is 298817. The next prime is 298841. The reversal of 298819 is 918892.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 298819 - 2¹ = 298817 is a prime.

It is a super-2 number, since 2×298819² = 178585589522, which contains 22 as substring.

Together with 298817, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (298817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149409 + 149410.

It is an arithmetic number, because the mean of its divisors is an integer number (149410).

2²⁹⁸⁸¹⁹ is an apocalyptic number.

298819 is a deficient number, since it is larger than the sum of its proper divisors (1).

298819 is an equidigital number, since it uses as much as digits as its factorization.

298819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 37.

The square root of 298819 is about 546.6433938136. The cubic root of 298819 is about 66.8553350046.

It can be divided in two parts, 29881 and 9, that added together give a triangular number (29890 = T₂₄₄).

The spelling of 298819 in words is "two hundred ninety-eight thousand, eight hundred nineteen".