9828961 has 2 divisors, whose sum is σ = 9828962. Its totient is φ = 9828960.

The previous prime is 9828919. The next prime is 9828977. The reversal of 9828961 is 1698289.

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., 9492561 + 336400 = 3081^2 + 580^2 .

It is an emirp because it is prime and its reverse (1698289) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9828961 - 2⁹ = 9828449 is a prime.

It is not a weakly prime, because it can be changed into another prime (9828901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4914480 + 4914481.

It is an arithmetic number, because the mean of its divisors is an integer number (4914481).

Almost surely, 2^9828961 is an apocalyptic number.

It is an amenable number.

9828961 is a deficient number, since it is larger than the sum of its proper divisors (1).

9828961 is an equidigital number, since it uses as much as digits as its factorization.

9828961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 43.

The square root of 9828961 is about 3135.1173821725. The cubic root of 9828961 is about 214.2080908902.

The spelling of 9828961 in words is "nine million, eight hundred twenty-eight thousand, nine hundred sixty-one".