998832209 has 16 divisors (see below), whose sum is σ = 1029817152. Its totient is φ = 968444928.

The previous prime is 998832113. The next prime is 998832217. The reversal of 998832209 is 902238899.

998832209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998832209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998838209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2138594 + ... + 2139060.

It is an arithmetic number, because the mean of its divisors is an integer number (64363572).

Almost surely, 2^998832209 is an apocalyptic number.

It is an amenable number.

998832209 is a deficient number, since it is larger than the sum of its proper divisors (30984943).

998832209 is a wasteful number, since it uses less digits than its factorization.

998832209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 998832209 is about 31604.3068109395. The cubic root of 998832209 is about 999.6105847087.

The spelling of 998832209 in words is "nine hundred ninety-eight million, eight hundred thirty-two thousand, two hundred nine".