9688428 has 36 divisors (see below), whose sum is σ = 25557168. Its totient is φ = 3088800.

The previous prime is 9688421. The next prime is 9688463. The reversal of 9688428 is 8248869.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×9688428² = 187731274222368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9688421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5023 + ... + 6678.

Almost surely, 2^9688428 is an apocalyptic number.

It is an amenable number.

9688428 is an abundant number, since it is smaller than the sum of its proper divisors (15868740).

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

9688428 is a wasteful number, since it uses less digits than its factorization.

9688428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11734 (or 11729 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 9688428 is about 3112.6239734346. The cubic root of 9688428 is about 213.1822813097.

The spelling of 9688428 in words is "nine million, six hundred eighty-eight thousand, four hundred twenty-eight".