9961673 has 2 divisors, whose sum is σ = 9961674. Its totient is φ = 9961672.

The previous prime is 9961669. The next prime is 9961687. The reversal of 9961673 is 3761699.

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., 9935104 + 26569 = 3152^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 9961673 - 2² = 9961669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9961673.

It is not a weakly prime, because it can be changed into another prime (9961613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4980836 + 4980837.

It is an arithmetic number, because the mean of its divisors is an integer number (4980837).

Almost surely, 2^9961673 is an apocalyptic number.

It is an amenable number.

9961673 is a deficient number, since it is larger than the sum of its proper divisors (1).

9961673 is an equidigital number, since it uses as much as digits as its factorization.

9961673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 9961673 is about 3156.2118116502. The cubic root of 9961673 is about 215.1678732162.

The spelling of 9961673 in words is "nine million, nine hundred sixty-one thousand, six hundred seventy-three".