9781332 has 24 divisors (see below), whose sum is σ = 24898272. Its totient is φ = 2964000.

The previous prime is 9781319. The next prime is 9781349. The reversal of 9781332 is 2331879.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 9781293 and 9781302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36919 + ... + 37182.

It is an arithmetic number, because the mean of its divisors is an integer number (1037428).

Almost surely, 2^9781332 is an apocalyptic number.

It is an amenable number.

9781332 is an abundant number, since it is smaller than the sum of its proper divisors (15116940).

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

9781332 is a wasteful number, since it uses less digits than its factorization.

9781332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74119 (or 74117 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 9781332 is about 3127.5121102883. The cubic root of 9781332 is about 213.8615286105.

The spelling of 9781332 in words is "nine million, seven hundred eighty-one thousand, three hundred thirty-two".