9969227993 has 2 divisors, whose sum is σ = 9969227994. Its totient is φ = 9969227992.

The previous prime is 9969227959. The next prime is 9969227999. The reversal of 9969227993 is 3997229699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7184766169 + 2784461824 = 84763^2 + 52768^2 .

It is an emirp because it is prime and its reverse (3997229699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9969227993 - 2¹⁸ = 9968965849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9969227999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984613996 + 4984613997.

It is an arithmetic number, because the mean of its divisors is an integer number (4984613997).

Almost surely, 2^9969227993 is an apocalyptic number.

It is an amenable number.

9969227993 is a deficient number, since it is larger than the sum of its proper divisors (1).

9969227993 is an equidigital number, since it uses as much as digits as its factorization.

9969227993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29760696, while the sum is 65.

The square root of 9969227993 is about 99846.0214179814. The cubic root of 9969227993 is about 2152.2225434261. Note that the first 3 decimals are identical.

The spelling of 9969227993 in words is "nine billion, nine hundred sixty-nine million, two hundred twenty-seven thousand, nine hundred ninety-three".