9909373 has 2 divisors, whose sum is σ = 9909374. Its totient is φ = 9909372.

The previous prime is 9909353. The next prime is 9909397. The reversal of 9909373 is 3739099.

It is a happy number.

9909373 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 558009 = 3058^2 + 747^2 .

It is a cyclic number.

It is not a de Polignac number, because 9909373 - 2²¹ = 7812221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9909313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4954686 + 4954687.

It is an arithmetic number, because the mean of its divisors is an integer number (4954687).

Almost surely, 2^9909373 is an apocalyptic number.

It is an amenable number.

9909373 is a deficient number, since it is larger than the sum of its proper divisors (1).

9909373 is an equidigital number, since it uses as much as digits as its factorization.

9909373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 9909373 is about 3147.9156596072. The cubic root of 9909373 is about 214.7906597665.

The spelling of 9909373 in words is "nine million, nine hundred nine thousand, three hundred seventy-three".