998352287 has 2 divisors, whose sum is σ = 998352288. Its totient is φ = 998352286.

The previous prime is 998352263. The next prime is 998352367. The reversal of 998352287 is 782253899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998352287 - 2¹² = 998348191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998352787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499176143 + 499176144.

It is an arithmetic number, because the mean of its divisors is an integer number (499176144).

Almost surely, 2^998352287 is an apocalyptic number.

998352287 is a deficient number, since it is larger than the sum of its proper divisors (1).

998352287 is an equidigital number, since it uses as much as digits as its factorization.

998352287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 998352287 is about 31596.7132309676. The cubic root of 998352287 is about 999.4504603949.

The spelling of 998352287 in words is "nine hundred ninety-eight million, three hundred fifty-two thousand, two hundred eighty-seven".