9899136 has 96 divisors (see below), whose sum is σ = 30723420. Its totient is φ = 3041280.

The previous prime is 9899119. The next prime is 9899143. The reversal of 9899136 is 6319989.

It can be written as a sum of positive squares in 2 ways, for example, as 9884736 + 14400 = 3144^2 + 120^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 9899091 and 9899100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14646 + ... + 15306.

Almost surely, 2^9899136 is an apocalyptic number.

9899136 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9899136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15361710).

9899136 is an abundant number, since it is smaller than the sum of its proper divisors (20824284).

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

9899136 is a wasteful number, since it uses less digits than its factorization.

9899136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 679 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 9899136 is about 3146.2892429019. The cubic root of 9899136 is about 214.7166702353.

The spelling of 9899136 in words is "nine million, eight hundred ninety-nine thousand, one hundred thirty-six".