9650813 has 2 divisors, whose sum is σ = 9650814. Its totient is φ = 9650812.

The previous prime is 9650783. The next prime is 9650831. The reversal of 9650813 is 3180569.

9650813 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

Together with next prime (9650831) 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., 9504889 + 145924 = 3083^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 9650813 - 2¹⁰ = 9649789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9650813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9650843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4825406 + 4825407.

It is an arithmetic number, because the mean of its divisors is an integer number (4825407).

Almost surely, 2^9650813 is an apocalyptic number.

It is an amenable number.

9650813 is a deficient number, since it is larger than the sum of its proper divisors (1).

9650813 is an equidigital number, since it uses as much as digits as its factorization.

9650813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 9650813 is about 3106.5757676258. The cubic root of 9650813 is about 212.9060324489.

The spelling of 9650813 in words is "nine million, six hundred fifty thousand, eight hundred thirteen".