9640973 has 2 divisors, whose sum is σ = 9640974. Its totient is φ = 9640972.

The previous prime is 9640957. The next prime is 9640991. The reversal of 9640973 is 3790469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6620329 + 3020644 = 2573^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 9640973 - 2⁴ = 9640957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9640913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4820486 + 4820487.

It is an arithmetic number, because the mean of its divisors is an integer number (4820487).

Almost surely, 2^9640973 is an apocalyptic number.

It is an amenable number.

9640973 is a deficient number, since it is larger than the sum of its proper divisors (1).

9640973 is an equidigital number, since it uses as much as digits as its factorization.

9640973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 9640973 is about 3104.9916263977. The cubic root of 9640973 is about 212.8336479502.

The spelling of 9640973 in words is "nine million, six hundred forty thousand, nine hundred seventy-three".