8013321 has 12 divisors (see below), whose sum is σ = 11771760. Its totient is φ = 5251320.

The previous prime is 8013287. The next prime is 8013323. The reversal of 8013321 is 1233108.

It is not a de Polignac number, because 8013321 - 2¹¹ = 8011273 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8013294 and 8013303.

It is not an unprimeable number, because it can be changed into a prime (8013323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7015 + ... + 8076.

It is an arithmetic number, because the mean of its divisors is an integer number (980980).

Almost surely, 2^8013321 is an apocalyptic number.

It is an amenable number.

8013321 is a deficient number, since it is larger than the sum of its proper divisors (3758439).

8013321 is a wasteful number, since it uses less digits than its factorization.

8013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15156 (or 15153 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 8013321 is about 2830.7809876428. The cubic root of 8013321 is about 200.1109467760.

Adding to 8013321 its reverse (1233108), we get a palindrome (9246429).

The spelling of 8013321 in words is "eight million, thirteen thousand, three hundred twenty-one".