998730827 has 2 divisors, whose sum is σ = 998730828. Its totient is φ = 998730826.

The previous prime is 998730809. The next prime is 998730833. The reversal of 998730827 is 728037899.

It is a strong prime.

It is an emirp because it is prime and its reverse (728037899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998730827 - 2¹⁴ = 998714443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (998730727) 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, 499365413 + 499365414.

It is an arithmetic number, because the mean of its divisors is an integer number (499365414).

Almost surely, 2^998730827 is an apocalyptic number.

998730827 is a deficient number, since it is larger than the sum of its proper divisors (1).

998730827 is an equidigital number, since it uses as much as digits as its factorization.

998730827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The square root of 998730827 is about 31602.7028432696. The cubic root of 998730827 is about 999.5767632292.

The spelling of 998730827 in words is "nine hundred ninety-eight million, seven hundred thirty thousand, eight hundred twenty-seven".