9969328 has 20 divisors (see below), whose sum is σ = 19413688. Its totient is φ = 4959360.

The previous prime is 9969313. The next prime is 9969329. The reversal of 9969328 is 8239699.

It is a happy number.

9969328 is nontrivially palindromic in base 15.

It is not an unprimeable number, because it can be changed into a prime (9969329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1900 + ... + 4852.

Almost surely, 2^9969328 is an apocalyptic number.

It is an amenable number.

9969328 is a deficient number, since it is larger than the sum of its proper divisors (9444360).

9969328 is a wasteful number, since it uses less digits than its factorization.

9969328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172 (or 3166 counting only the distinct ones).

The product of its digits is 209952, while the sum is 46.

The square root of 9969328 is about 3157.4242667085. The cubic root of 9969328 is about 215.2229740125. Note that the first 3 decimals are identical.

Subtracting from 9969328 its product of digits (209952), we obtain a square (9759376 = 3124²).

The spelling of 9969328 in words is "nine million, nine hundred sixty-nine thousand, three hundred twenty-eight".