8315321 has 8 divisors (see below), whose sum is σ = 9557184. Its totient is φ = 7086960.

The previous prime is 8315317. The next prime is 8315323. The reversal of 8315321 is 1235138.

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 8315321 - 2² = 8315317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8315323) 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, 2015 + ... + 4548.

It is an arithmetic number, because the mean of its divisors is an integer number (1194648).

Almost surely, 2^8315321 is an apocalyptic number.

It is an amenable number.

8315321 is a deficient number, since it is larger than the sum of its proper divisors (1241863).

8315321 is a wasteful number, since it uses less digits than its factorization.

8315321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751.

The product of its digits is 720, while the sum is 23.

The square root of 8315321 is about 2883.6298306128. The cubic root of 8315321 is about 202.5938882817.

The spelling of 8315321 in words is "eight million, three hundred fifteen thousand, three hundred twenty-one".