9561728 has 32 divisors (see below), whose sum is σ = 20783520. Its totient is φ = 4345600.

The previous prime is 9561719. The next prime is 9561737. The reversal of 9561728 is 8271659.

It is an interprime number because it is at equal distance from previous prime (9561719) and next prime (9561737).

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 9561691 and 9561700.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (649485).

Almost surely, 2^9561728 is an apocalyptic number.

It is an amenable number.

9561728 is an abundant number, since it is smaller than the sum of its proper divisors (11221792).

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

9561728 is a wasteful number, since it uses less digits than its factorization.

9561728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6816 (or 6804 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 9561728 is about 3092.2043916921. The cubic root of 9561728 is about 212.2489066505.

The spelling of 9561728 in words is "nine million, five hundred sixty-one thousand, seven hundred twenty-eight".