998233164 has 72 divisors (see below), whose sum is σ = 2578906512. Its totient is φ = 325453440.

The previous prime is 998233163. The next prime is 998233169. The reversal of 998233164 is 461332899.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (998233163) 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 in 23 ways as a sum of consecutive naturals, for example, 844654 + ... + 845834.

It is an arithmetic number, because the mean of its divisors is an integer number (35818146).

Almost surely, 2^998233164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998233164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289453256).

998233164 is an abundant number, since it is smaller than the sum of its proper divisors (1580673348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998233164 is a wasteful number, since it uses less digits than its factorization.

998233164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1682 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 998233164 is about 31594.8281210707. The cubic root of 998233164 is about 999.4107074692.

The spelling of 998233164 in words is "nine hundred ninety-eight million, two hundred thirty-three thousand, one hundred sixty-four".