8520909223 has 2 divisors, whose sum is σ = 8520909224. Its totient is φ = 8520909222.

The previous prime is 8520909179. The next prime is 8520909323. The reversal of 8520909223 is 3229090258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8520909223 - 2¹⁷ = 8520778151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8520909323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4260454611 + 4260454612.

It is an arithmetic number, because the mean of its divisors is an integer number (4260454612).

Almost surely, 2^8520909223 is an apocalyptic number.

8520909223 is a deficient number, since it is larger than the sum of its proper divisors (1).

8520909223 is an equidigital number, since it uses as much as digits as its factorization.

8520909223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 8520909223 is about 92308.7711054589. The cubic root of 8520909223 is about 2042.4995970869.

The spelling of 8520909223 in words is "eight billion, five hundred twenty million, nine hundred nine thousand, two hundred twenty-three".