9947573 has 2 divisors, whose sum is σ = 9947574. Its totient is φ = 9947572.

The previous prime is 9947527. The next prime is 9947599. The reversal of 9947573 is 3757499.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6646084 + 3301489 = 2578^2 + 1817^2 .

It is a cyclic number.

It is not a de Polignac number, because 9947573 - 2¹⁰ = 9946549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9947513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4973786 + 4973787.

It is an arithmetic number, because the mean of its divisors is an integer number (4973787).

Almost surely, 2^9947573 is an apocalyptic number.

It is an amenable number.

9947573 is a deficient number, since it is larger than the sum of its proper divisors (1).

9947573 is an equidigital number, since it uses as much as digits as its factorization.

9947573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 44.

The square root of 9947573 is about 3153.9773302927. The cubic root of 9947573 is about 215.0663072931.

The spelling of 9947573 in words is "nine million, nine hundred forty-seven thousand, five hundred seventy-three".