998845259 has 2 divisors, whose sum is σ = 998845260. Its totient is φ = 998845258.

The previous prime is 998845121. The next prime is 998845273. The reversal of 998845259 is 952548899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998845259 - 2¹² = 998841163 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 998845198 and 998845207.

It is not a weakly prime, because it can be changed into another prime (998847259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499422629 + 499422630.

It is an arithmetic number, because the mean of its divisors is an integer number (499422630).

Almost surely, 2^998845259 is an apocalyptic number.

998845259 is a deficient number, since it is larger than the sum of its proper divisors (1).

998845259 is an equidigital number, since it uses as much as digits as its factorization.

998845259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 59.

The square root of 998845259 is about 31604.5132694683. The cubic root of 998845259 is about 999.6149380797.

The spelling of 998845259 in words is "nine hundred ninety-eight million, eight hundred forty-five thousand, two hundred fifty-nine".