9975773 has 2 divisors, whose sum is σ = 9975774. Its totient is φ = 9975772.

The previous prime is 9975737. The next prime is 9975803. The reversal of 9975773 is 3775799.

Together with previous prime (9975737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9972964 + 2809 = 3158^2 + 53^2 .

It is an emirp because it is prime and its reverse (3775799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9975773 - 2⁶ = 9975709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9975733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987886 + 4987887.

It is an arithmetic number, because the mean of its divisors is an integer number (4987887).

Almost surely, 2^9975773 is an apocalyptic number.

It is an amenable number.

9975773 is a deficient number, since it is larger than the sum of its proper divisors (1).

9975773 is an equidigital number, since it uses as much as digits as its factorization.

9975773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 416745, while the sum is 47.

The square root of 9975773 is about 3158.4447121962. Note that the first 3 decimals coincide. The cubic root of 9975773 is about 215.2693433452.

The spelling of 9975773 in words is "nine million, nine hundred seventy-five thousand, seven hundred seventy-three".