998460863 has 2 divisors, whose sum is σ = 998460864. Its totient is φ = 998460862.

The previous prime is 998460857. The next prime is 998460899. The reversal of 998460863 is 368064899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998460863 - 2¹⁶ = 998395327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998460263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499230431 + 499230432.

It is an arithmetic number, because the mean of its divisors is an integer number (499230432).

Almost surely, 2^998460863 is an apocalyptic number.

998460863 is a deficient number, since it is larger than the sum of its proper divisors (1).

998460863 is an equidigital number, since it uses as much as digits as its factorization.

998460863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 998460863 is about 31598.4313376471. The cubic root of 998460863 is about 999.4866908922.

The spelling of 998460863 in words is "nine hundred ninety-eight million, four hundred sixty thousand, eight hundred sixty-three".