9638725 has 12 divisors (see below), whose sum is σ = 12472416. Its totient is φ = 7375280.

The previous prime is 9638659. The next prime is 9638743. The reversal of 9638725 is 5278369.

It is not a de Polignac number, because 9638725 - 2⁷ = 9638597 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7807 + ... + 8956.

It is an arithmetic number, because the mean of its divisors is an integer number (1039368).

Almost surely, 2^9638725 is an apocalyptic number.

It is an amenable number.

9638725 is a deficient number, since it is larger than the sum of its proper divisors (2833691).

9638725 is a wasteful number, since it uses less digits than its factorization.

9638725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16796 (or 16791 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 9638725 is about 3104.6296075377. The cubic root of 9638725 is about 212.8171044183.

The spelling of 9638725 in words is "nine million, six hundred thirty-eight thousand, seven hundred twenty-five".