8238385 has 4 divisors (see below), whose sum is σ = 9886068. Its totient is φ = 6590704.

The previous prime is 8238371. The next prime is 8238389. The reversal of 8238385 is 5838328.

It is a happy number.

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 3538161 + 4700224 = 1881^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 8238385 - 2¹¹ = 8236337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8238389) 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, 823834 + ... + 823843.

It is an arithmetic number, because the mean of its divisors is an integer number (2471517).

Almost surely, 2^8238385 is an apocalyptic number.

It is an amenable number.

8238385 is a deficient number, since it is larger than the sum of its proper divisors (1647683).

8238385 is a wasteful number, since it uses less digits than its factorization.

8238385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647682.

The product of its digits is 46080, while the sum is 37.

The square root of 8238385 is about 2870.2586991419. The cubic root of 8238385 is about 201.9671302266.

The spelling of 8238385 in words is "eight million, two hundred thirty-eight thousand, three hundred eighty-five".