9343771993 has 2 divisors, whose sum is σ = 9343771994. Its totient is φ = 9343771992.

The previous prime is 9343771951. The next prime is 9343772017. The reversal of 9343771993 is 3991773439.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5747610969 + 3596161024 = 75813^2 + 59968^2 .

It is an emirp because it is prime and its reverse (3991773439) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9343771993 - 2¹³ = 9343763801 is a prime.

It is not a weakly prime, because it can be changed into another prime (9343772993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4671885996 + 4671885997.

It is an arithmetic number, because the mean of its divisors is an integer number (4671885997).

Almost surely, 2^9343771993 is an apocalyptic number.

It is an amenable number.

9343771993 is a deficient number, since it is larger than the sum of its proper divisors (1).

9343771993 is an equidigital number, since it uses as much as digits as its factorization.

9343771993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3857868, while the sum is 55.

The square root of 9343771993 is about 96663.1884069629. The cubic root of 9343771993 is about 2106.2378392486.

The spelling of 9343771993 in words is "nine billion, three hundred forty-three million, seven hundred seventy-one thousand, nine hundred ninety-three".