9661459 has 2 divisors, whose sum is σ = 9661460. Its totient is φ = 9661458.

The previous prime is 9661441. The next prime is 9661489. The reversal of 9661459 is 9541669.

It is a weak prime.

It is an emirp because it is prime and its reverse (9541669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9661459 - 2²³ = 1272851 is a prime.

It is not a weakly prime, because it can be changed into another prime (9661409) 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, 4830729 + 4830730.

It is an arithmetic number, because the mean of its divisors is an integer number (4830730).

Almost surely, 2^9661459 is an apocalyptic number.

9661459 is a deficient number, since it is larger than the sum of its proper divisors (1).

9661459 is an equidigital number, since it uses as much as digits as its factorization.

9661459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 9661459 is about 3108.2887574999. The cubic root of 9661459 is about 212.9842906119.

The spelling of 9661459 in words is "nine million, six hundred sixty-one thousand, four hundred fifty-nine".