9000998 has 8 divisors (see below), whose sum is σ = 13608192. Its totient is φ = 4464936.

The previous prime is 9000997. The next prime is 9001001. The reversal of 9000998 is 8990009.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17465 + ... + 17972.

It is an arithmetic number, because the mean of its divisors is an integer number (1701024).

Almost surely, 2^9000998 is an apocalyptic number.

9000998 is a deficient number, since it is larger than the sum of its proper divisors (4607194).

9000998 is a wasteful number, since it uses less digits than its factorization.

9000998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35566.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 9000998 is about 3000.1663287225. The cubic root of 9000998 is about 208.0160706271.

The spelling of 9000998 in words is "nine million, nine hundred ninety-eight", and thus it is an aban number.