8272393 has 4 divisors (see below), whose sum is σ = 8408068. Its totient is φ = 8136720.

The previous prime is 8272357. The next prime is 8272403. The reversal of 8272393 is 3932728.

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 3489424 + 4782969 = 1868^2 + 2187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8272393 is a prime.

It is a Duffinian number.

8272393 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8272333) 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, 67746 + ... + 67867.

It is an arithmetic number, because the mean of its divisors is an integer number (2102017).

Almost surely, 2^8272393 is an apocalyptic number.

It is an amenable number.

8272393 is a deficient number, since it is larger than the sum of its proper divisors (135675).

8272393 is a wasteful number, since it uses less digits than its factorization.

8272393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135674.

The product of its digits is 18144, while the sum is 34.

The square root of 8272393 is about 2876.1768026323. The cubic root of 8272393 is about 202.2446550384.

The spelling of 8272393 in words is "eight million, two hundred seventy-two thousand, three hundred ninety-three".