984998 has 36 divisors (see below), whose sum is σ = 1891260. Its totient is φ = 382536.

The previous prime is 984959. The next prime is 985003. The reversal of 984998 is 899489.

Its product of digits (186624) is a multiple of the sum of its prime factors (81).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 984998.

It is an unprimeable number.

984998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 42815 + ... + 42837.

It is an arithmetic number, because the mean of its divisors is an integer number (52535).

2⁹⁸⁴⁹⁹⁸ is an apocalyptic number.

984998 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

984998 is a deficient number, since it is larger than the sum of its proper divisors (906262).

984998 is a wasteful number, since it uses less digits than its factorization.

984998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 51 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 984998 is about 992.4706544780. The cubic root of 984998 is about 99.4974116142.

The spelling of 984998 in words is "nine hundred eighty-four thousand, nine hundred ninety-eight".