9621671 has 2 divisors, whose sum is σ = 9621672. Its totient is φ = 9621670.

The previous prime is 9621641. The next prime is 9621683. The reversal of 9621671 is 1761269.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9621671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9621641) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4810835 + 4810836.

It is an arithmetic number, because the mean of its divisors is an integer number (4810836).

Almost surely, 2^9621671 is an apocalyptic number.

9621671 is a deficient number, since it is larger than the sum of its proper divisors (1).

9621671 is an equidigital number, since it uses as much as digits as its factorization.

9621671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 9621671 is about 3101.8818481689. The cubic root of 9621671 is about 212.6915163860.

The spelling of 9621671 in words is "nine million, six hundred twenty-one thousand, six hundred seventy-one".