9638425 has 6 divisors (see below), whose sum is σ = 11951678. Its totient is φ = 7710720.

The previous prime is 9638423. The next prime is 9638437. The reversal of 9638425 is 5248369.

It can be written as a sum of positive squares in 3 ways, for example, as 1390041 + 8248384 = 1179^2 + 2872^2 .

It is not a de Polignac number, because 9638425 - 2¹ = 9638423 is a prime.

It is a Duffinian number.

9638425 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9638423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192744 + ... + 192793.

Almost surely, 2^9638425 is an apocalyptic number.

It is an amenable number.

9638425 is a deficient number, since it is larger than the sum of its proper divisors (2313253).

9638425 is a wasteful number, since it uses less digits than its factorization.

9638425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385547 (or 385542 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 9638425 is about 3104.5812922196. The cubic root of 9638425 is about 212.8148964571.

The spelling of 9638425 in words is "nine million, six hundred thirty-eight thousand, four hundred twenty-five".