9638369 has 4 divisors (see below), whose sum is σ = 10379796. Its totient is φ = 8896944.

The previous prime is 9638347. The next prime is 9638383.

9638369 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4255969 + 5382400 = 2063^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 9638369 - 2⁸ = 9638113 is a prime.

It is a super-2 number, since 2×9638369² = 185796313960322, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9638309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370694 + ... + 370719.

It is an arithmetic number, because the mean of its divisors is an integer number (2594949).

Almost surely, 2^9638369 is an apocalyptic number.

It is an amenable number.

9638369 is a deficient number, since it is larger than the sum of its proper divisors (741427).

9638369 is a wasteful number, since it uses less digits than its factorization.

9638369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741426.

The product of its digits is 209952, while the sum is 44.

The square root of 9638369 is about 3104.5722732769. The cubic root of 9638369 is about 212.8144842992.

The spelling of 9638369 in words is "nine million, six hundred thirty-eight thousand, three hundred sixty-nine".