298916489 has 2 divisors, whose sum is σ = 298916490. Its totient is φ = 298916488.

The previous prime is 298916437. The next prime is 298916503. The reversal of 298916489 is 984619892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246961225 + 51955264 = 15715^2 + 7208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298916489 is a prime.

It is not a weakly prime, because it can be changed into another prime (298916089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149458244 + 149458245.

It is an arithmetic number, because the mean of its divisors is an integer number (149458245).

Almost surely, 2^298916489 is an apocalyptic number.

It is an amenable number.

298916489 is a deficient number, since it is larger than the sum of its proper divisors (1).

298916489 is an equidigital number, since it uses as much as digits as its factorization.

298916489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 56.

The square root of 298916489 is about 17289.2015142400. The cubic root of 298916489 is about 668.6260467969.

The spelling of 298916489 in words is "two hundred ninety-eight million, nine hundred sixteen thousand, four hundred eighty-nine".