8324521 has 4 divisors (see below), whose sum is σ = 8407044. Its totient is φ = 8242000.

The previous prime is 8324513. The next prime is 8324557. The reversal of 8324521 is 1254238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1254238 = 2 ⋅627119.

It can be written as a sum of positive squares in 2 ways, for example, as 8037225 + 287296 = 2835^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 8324521 - 2³ = 8324513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8324621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41110 + ... + 41311.

It is an arithmetic number, because the mean of its divisors is an integer number (2101761).

Almost surely, 2^8324521 is an apocalyptic number.

It is an amenable number.

8324521 is a deficient number, since it is larger than the sum of its proper divisors (82523).

8324521 is a wasteful number, since it uses less digits than its factorization.

8324521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82522.

The product of its digits is 1920, while the sum is 25.

The square root of 8324521 is about 2885.2246013092. The cubic root of 8324521 is about 202.6685767917.

Adding to 8324521 its reverse (1254238), we get a palindrome (9578759).

The spelling of 8324521 in words is "eight million, three hundred twenty-four thousand, five hundred twenty-one".