8322521 has 8 divisors (see below), whose sum is σ = 8747904. Its totient is φ = 7907760.

The previous prime is 8322491. The next prime is 8322529. The reversal of 8322521 is 1252238.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8322521 - 2²² = 4128217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8322529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025 + ... + 4206.

It is an arithmetic number, because the mean of its divisors is an integer number (1093488).

Almost surely, 2^8322521 is an apocalyptic number.

It is an amenable number.

8322521 is a deficient number, since it is larger than the sum of its proper divisors (425383).

8322521 is a wasteful number, since it uses less digits than its factorization.

8322521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its digits is 960, while the sum is 23.

The square root of 8322521 is about 2884.8779870213. The cubic root of 8322521 is about 202.6523448420.

Adding to 8322521 its reverse (1252238), we get a palindrome (9574759).

The spelling of 8322521 in words is "eight million, three hundred twenty-two thousand, five hundred twenty-one".