9901056 has 88 divisors (see below), whose sum is σ = 28887264. Its totient is φ = 2990080.

The previous prime is 9901037. The next prime is 9901061. The reversal of 9901056 is 6501099.

It is a tau number, because it is divible by the number of its divisors (88).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33646 + ... + 33938.

Almost surely, 2^9901056 is an apocalyptic number.

9901056 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 9901056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14443632).

9901056 is an abundant number, since it is smaller than the sum of its proper divisors (18986208).

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

9901056 is a wasteful number, since it uses less digits than its factorization.

9901056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 9901056 is about 3146.5943494515. The cubic root of 9901056 is about 214.7305512231.

The spelling of 9901056 in words is "nine million, nine hundred one thousand, fifty-six".