9945937 has 2 divisors, whose sum is σ = 9945938. Its totient is φ = 9945936.

The previous prime is 9945919. The next prime is 9945941. The reversal of 9945937 is 7395499.

9945937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 1288-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7177041 + 2768896 = 2679^2 + 1664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9945937 is a prime.

It is not a weakly prime, because it can be changed into another prime (9945967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4972968 + 4972969.

It is an arithmetic number, because the mean of its divisors is an integer number (4972969).

Almost surely, 2^9945937 is an apocalyptic number.

It is an amenable number.

9945937 is a deficient number, since it is larger than the sum of its proper divisors (1).

9945937 is an equidigital number, since it uses as much as digits as its factorization.

9945937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 46.

The square root of 9945937 is about 3153.7179645618. The cubic root of 9945937 is about 215.0545165521.

The spelling of 9945937 in words is "nine million, nine hundred forty-five thousand, nine hundred thirty-seven".