9920704223 has 2 divisors, whose sum is σ = 9920704224. Its totient is φ = 9920704222.

The previous prime is 9920704219. The next prime is 9920704253. The reversal of 9920704223 is 3224070299.

It is a weak prime.

It is an emirp because it is prime and its reverse (3224070299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9920704223 - 2² = 9920704219 is a prime.

It is a super-3 number, since 3×9920704223³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9920704253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4960352111 + 4960352112.

It is an arithmetic number, because the mean of its divisors is an integer number (4960352112).

Almost surely, 2^9920704223 is an apocalyptic number.

9920704223 is a deficient number, since it is larger than the sum of its proper divisors (1).

9920704223 is an equidigital number, since it uses as much as digits as its factorization.

9920704223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 9920704223 is about 99602.7320057035. The cubic root of 9920704223 is about 2148.7249857261.

The spelling of 9920704223 in words is "nine billion, nine hundred twenty million, seven hundred four thousand, two hundred twenty-three".