998528356 has 48 divisors (see below), whose sum is σ = 2118860800. Its totient is φ = 402198048.

The previous prime is 998528353. The next prime is 998528359. The reversal of 998528356 is 653825899.

It is an interprime number because it is at equal distance from previous prime (998528353) and next prime (998528359).

It is a junction number, because it is equal to n+sod(n) for n = 998528297 and 998528306.

It is not an unprimeable number, because it can be changed into a prime (998528353) 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, 60175 + ... + 74953.

Almost surely, 2^998528356 is an apocalyptic number.

998528356 is the 16891-st nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998528356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1059430400).

998528356 is an abundant number, since it is smaller than the sum of its proper divisors (1120332444).

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

998528356 is a wasteful number, since it uses less digits than its factorization.

998528356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14936 (or 14934 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 55.

The square root of 998528356 is about 31599.4992998307. The cubic root of 998528356 is about 999.5092111657.

The spelling of 998528356 in words is "nine hundred ninety-eight million, five hundred twenty-eight thousand, three hundred fifty-six".