9725287 has 16 divisors (see below), whose sum is σ = 11676672. Its totient is φ = 7981920.

The previous prime is 9725273. The next prime is 9725327. The reversal of 9725287 is 7825279.

9725287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9725287 - 2¹¹ = 9723239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5998 + ... + 7444.

It is an arithmetic number, because the mean of its divisors is an integer number (729792).

Almost surely, 2^9725287 is an apocalyptic number.

9725287 is a deficient number, since it is larger than the sum of its proper divisors (1951385).

9725287 is a wasteful number, since it uses less digits than its factorization.

9725287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518.

The product of its digits is 70560, while the sum is 40.

The square root of 9725287 is about 3118.5392413757. The cubic root of 9725287 is about 213.4522852783.

The spelling of 9725287 in words is "nine million, seven hundred twenty-five thousand, two hundred eighty-seven".