8520803 has 2 divisors, whose sum is σ = 8520804. Its totient is φ = 8520802.

The previous prime is 8520793. The next prime is 8520821. The reversal of 8520803 is 3080258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8520803 - 2⁶ = 8520739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8520103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4260401 + 4260402.

It is an arithmetic number, because the mean of its divisors is an integer number (4260402).

Almost surely, 2^8520803 is an apocalyptic number.

8520803 is a deficient number, since it is larger than the sum of its proper divisors (1).

8520803 is an equidigital number, since it uses as much as digits as its factorization.

8520803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 8520803 is about 2919.0414522579. The cubic root of 8520803 is about 204.2491109677.

The spelling of 8520803 in words is "eight million, five hundred twenty thousand, eight hundred three".