9131856 has 120 divisors (see below), whose sum is σ = 27212544. Its totient is φ = 2626560.

The previous prime is 9131849. The next prime is 9131891. The reversal of 9131856 is 6581319.

9131856 = 23² + 24² + ... + 301².

Its product of digits (6480) is a multiple of the sum of its prime divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294561 + ... + 294591.

Almost surely, 2^9131856 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 9131856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13606272).

9131856 is an abundant number, since it is smaller than the sum of its proper divisors (18080688).

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

9131856 is a wasteful number, since it uses less digits than its factorization.

9131856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 72 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 9131856 is about 3021.8960935148. The cubic root of 9131856 is about 209.0192819676.

The spelling of 9131856 in words is "nine million, one hundred thirty-one thousand, eight hundred fifty-six".