8521363 has 4 divisors (see below), whose sum is σ = 8638168. Its totient is φ = 8404560.

The previous prime is 8521343. The next prime is 8521391. The reversal of 8521363 is 3631258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3631258 = 2 ⋅1815629.

It is a cyclic number.

It is not a de Polignac number, because 8521363 - 2⁹ = 8520851 is a prime.

It is a super-3 number, since 3×8521363³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 58293 + ... + 58438.

It is an arithmetic number, because the mean of its divisors is an integer number (2159542).

Almost surely, 2^8521363 is an apocalyptic number.

8521363 is a deficient number, since it is larger than the sum of its proper divisors (116805).

8521363 is a wasteful number, since it uses less digits than its factorization.

8521363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116804.

The product of its digits is 4320, while the sum is 28.

The square root of 8521363 is about 2919.1373725812. The cubic root of 8521363 is about 204.2535853894.

The spelling of 8521363 in words is "eight million, five hundred twenty-one thousand, three hundred sixty-three".