998084686 has 8 divisors (see below), whose sum is σ = 1502953200. Its totient is φ = 497100288.

The previous prime is 998084629. The next prime is 998084719. The reversal of 998084686 is 686480899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 998084686.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 970386 + ... + 971413.

It is an arithmetic number, because the mean of its divisors is an integer number (187869150).

Almost surely, 2^998084686 is an apocalyptic number.

998084686 is a deficient number, since it is larger than the sum of its proper divisors (504868514).

998084686 is a wasteful number, since it uses less digits than its factorization.

998084686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942058.

The product of its (nonzero) digits is 5971968, while the sum is 58.

The square root of 998084686 is about 31592.4783136746. The cubic root of 998084686 is about 999.3611539627.

The spelling of 998084686 in words is "nine hundred ninety-eight million, eighty-four thousand, six hundred eighty-six".