8947620223 has 2 divisors, whose sum is σ = 8947620224. Its totient is φ = 8947620222.

The previous prime is 8947620211. The next prime is 8947620247. The reversal of 8947620223 is 3220267498.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8947620223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8947620223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8947620323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4473810111 + 4473810112.

It is an arithmetic number, because the mean of its divisors is an integer number (4473810112).

Almost surely, 2^8947620223 is an apocalyptic number.

8947620223 is a deficient number, since it is larger than the sum of its proper divisors (1).

8947620223 is an equidigital number, since it uses as much as digits as its factorization.

8947620223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 8947620223 is about 94591.8612936652. The cubic root of 8947620223 is about 2076.0406236675.

The spelling of 8947620223 in words is "eight billion, nine hundred forty-seven million, six hundred twenty thousand, two hundred twenty-three".