9650989 has 2 divisors, whose sum is σ = 9650990. Its totient is φ = 9650988.

The previous prime is 9650987. The next prime is 9651001. The reversal of 9650989 is 9890569.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9455625 + 195364 = 3075^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 9650989 - 2¹ = 9650987 is a prime.

Together with 9650987, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9650983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4825494 + 4825495.

It is an arithmetic number, because the mean of its divisors is an integer number (4825495).

Almost surely, 2^9650989 is an apocalyptic number.

It is an amenable number.

9650989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9650989 is an equidigital number, since it uses as much as digits as its factorization.

9650989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 9650989 is about 3106.6040945058. The cubic root of 9650989 is about 212.9073266830.

The spelling of 9650989 in words is "nine million, six hundred fifty thousand, nine hundred eighty-nine".