298420609 has 2 divisors, whose sum is σ = 298420610. Its totient is φ = 298420608.

The previous prime is 298420589. The next prime is 298420621. The reversal of 298420609 is 906024892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297735025 + 685584 = 17255^2 + 828^2 .

It is a cyclic number.

It is not a de Polignac number, because 298420609 - 2⁷ = 298420481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (298420679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149210304 + 149210305.

It is an arithmetic number, because the mean of its divisors is an integer number (149210305).

Almost surely, 2^298420609 is an apocalyptic number.

It is an amenable number.

298420609 is a deficient number, since it is larger than the sum of its proper divisors (1).

298420609 is an equidigital number, since it uses as much as digits as its factorization.

298420609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 298420609 is about 17274.8548184927. The cubic root of 298420609 is about 668.2561086939.

The spelling of 298420609 in words is "two hundred ninety-eight million, four hundred twenty thousand, six hundred nine".