9894868223 has 2 divisors, whose sum is σ = 9894868224. Its totient is φ = 9894868222.

The previous prime is 9894868201. The next prime is 9894868271. The reversal of 9894868223 is 3228684989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9894868223 - 2⁸ = 9894867967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9894868273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4947434111 + 4947434112.

It is an arithmetic number, because the mean of its divisors is an integer number (4947434112).

Almost surely, 2^9894868223 is an apocalyptic number.

9894868223 is a deficient number, since it is larger than the sum of its proper divisors (1).

9894868223 is an equidigital number, since it uses as much as digits as its factorization.

9894868223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11943936, while the sum is 59.

The square root of 9894868223 is about 99472.9522181784. The cubic root of 9894868223 is about 2146.8580913836.

The spelling of 9894868223 in words is "nine billion, eight hundred ninety-four million, eight hundred sixty-eight thousand, two hundred twenty-three".