8521383 has 16 divisors (see below), whose sum is σ = 12325376. Its totient is φ = 5205600.

The previous prime is 8521343. The next prime is 8521391. The reversal of 8521383 is 3831258.

It is a happy number.

It is not a de Polignac number, because 8521383 - 2¹⁰ = 8520359 is a prime.

It is a super-2 number, since 2×8521383² = 145227936465378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8521383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8521343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5166 + ... + 6612.

It is an arithmetic number, because the mean of its divisors is an integer number (770336).

Almost surely, 2^8521383 is an apocalyptic number.

8521383 is a deficient number, since it is larger than the sum of its proper divisors (3803993).

8521383 is a wasteful number, since it uses less digits than its factorization.

8521383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614.

The product of its digits is 5760, while the sum is 30.

The square root of 8521383 is about 2919.1407982487. The cubic root of 8521383 is about 204.2537451866.

The spelling of 8521383 in words is "eight million, five hundred twenty-one thousand, three hundred eighty-three".