9943693 has 2 divisors, whose sum is σ = 9943694. Its totient is φ = 9943692.

The previous prime is 9943679. The next prime is 9943699. The reversal of 9943693 is 3963499.

It is a happy number.

9943693 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8684809 + 1258884 = 2947^2 + 1122^2 .

It is a cyclic number.

It is not a de Polignac number, because 9943693 - 2²¹ = 7846541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9943699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971846 + 4971847.

It is an arithmetic number, because the mean of its divisors is an integer number (4971847).

Almost surely, 2^9943693 is an apocalyptic number.

It is an amenable number.

9943693 is a deficient number, since it is larger than the sum of its proper divisors (1).

9943693 is an equidigital number, since it uses as much as digits as its factorization.

9943693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464, while the sum is 43.

The square root of 9943693 is about 3153.3621739344. The cubic root of 9943693 is about 215.0383418189.

The spelling of 9943693 in words is "nine million, nine hundred forty-three thousand, six hundred ninety-three".