998759287 has 2 divisors, whose sum is σ = 998759288. Its totient is φ = 998759286.

The previous prime is 998759273. The next prime is 998759297. The reversal of 998759287 is 782957899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998759287 - 2¹¹ = 998757239 is a prime.

It is a super-2 number, since 2×998759287² = 1995040226737496738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998759207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499379643 + 499379644.

It is an arithmetic number, because the mean of its divisors is an integer number (499379644).

Almost surely, 2^998759287 is an apocalyptic number.

998759287 is a deficient number, since it is larger than the sum of its proper divisors (1).

998759287 is an equidigital number, since it uses as much as digits as its factorization.

998759287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 64.

The square root of 998759287 is about 31603.1531180039. The cubic root of 998759287 is about 999.5862578410.

The spelling of 998759287 in words is "nine hundred ninety-eight million, seven hundred fifty-nine thousand, two hundred eighty-seven".