9643725 has 96 divisors (see below), whose sum is σ = 21943040. Its totient is φ = 4043520.

The previous prime is 9643723. The next prime is 9643729. The reversal of 9643725 is 5273469.

9643725 is a `hidden beast` number, since 9 + 643 + 7 + 2 + 5 = 666.

9643725 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9643725 - 2¹ = 9643723 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 9643725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9643723) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61347 + ... + 61503.

Almost surely, 2^9643725 is an apocalyptic number.

It is an amenable number.

9643725 is an abundant number, since it is smaller than the sum of its proper divisors (12299315).

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

9643725 is a wasteful number, since it uses less digits than its factorization.

9643725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 185 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 9643725 is about 3105.4347521724. The cubic root of 9643725 is about 212.8538970294.

The spelling of 9643725 in words is "nine million, six hundred forty-three thousand, seven hundred twenty-five".