8520303 has 32 divisors (see below), whose sum is σ = 13271040. Its totient is φ = 4808160.

The previous prime is 8520293. The next prime is 8520307. The reversal of 8520303 is 3030258.

It is not a de Polignac number, because 8520303 - 2¹⁰ = 8519279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8520303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8520307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67026 + ... + 67152.

It is an arithmetic number, because the mean of its divisors is an integer number (414720).

Almost surely, 2^8520303 is an apocalyptic number.

8520303 is a deficient number, since it is larger than the sum of its proper divisors (4750737).

8520303 is a wasteful number, since it uses less digits than its factorization.

8520303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 8520303 is about 2918.9558064486. The cubic root of 8520303 is about 204.2451157827.

The spelling of 8520303 in words is "eight million, five hundred twenty thousand, three hundred three".