9705872 has 20 divisors (see below), whose sum is σ = 20515056. Its totient is φ = 4411680.

The previous prime is 9705859. The next prime is 9705887. The reversal of 9705872 is 2785079.

It is an Ulam number.

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, 27398 + ... + 27749.

Almost surely, 2^9705872 is an apocalyptic number.

It is an amenable number.

9705872 is an abundant number, since it is smaller than the sum of its proper divisors (10809184).

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

9705872 is a wasteful number, since it uses less digits than its factorization.

9705872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55166 (or 55160 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 9705872 is about 3115.4248506424. The cubic root of 9705872 is about 213.3101493903.

The spelling of 9705872 in words is "nine million, seven hundred five thousand, eight hundred seventy-two".