8638325 has 6 divisors (see below), whose sum is σ = 10711554. Its totient is φ = 6910640.

The previous prime is 8638319. The next prime is 8638327. The reversal of 8638325 is 5238368.

It can be written as a sum of positive squares in 3 ways, for example, as 1705636 + 6932689 = 1306^2 + 2633^2 .

It is not a de Polignac number, because 8638325 - 2¹⁰ = 8637301 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 8⁵ + 6² + 3¹³ + 8⁷ + 3¹⁴ + 2¹⁷ + 5 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8638327) 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, 172742 + ... + 172791.

It is an arithmetic number, because the mean of its divisors is an integer number (1785259).

Almost surely, 2^8638325 is an apocalyptic number.

It is an amenable number.

8638325 is a deficient number, since it is larger than the sum of its proper divisors (2073229).

8638325 is a wasteful number, since it uses less digits than its factorization.

8638325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345543 (or 345538 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 8638325 is about 2939.1027542432. The cubic root of 8638325 is about 205.1838525141.

The spelling of 8638325 in words is "eight million, six hundred thirty-eight thousand, three hundred twenty-five".