9561983 has 2 divisors, whose sum is σ = 9561984. Its totient is φ = 9561982.

The previous prime is 9561961. The next prime is 9561989. The reversal of 9561983 is 3891659.

It is a strong prime.

It is an emirp because it is prime and its reverse (3891659) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9561983 - 2¹⁰ = 9560959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9561983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9561989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4780991 + 4780992.

It is an arithmetic number, because the mean of its divisors is an integer number (4780992).

Almost surely, 2^9561983 is an apocalyptic number.

9561983 is a deficient number, since it is larger than the sum of its proper divisors (1).

9561983 is an equidigital number, since it uses as much as digits as its factorization.

9561983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 9561983 is about 3092.2456241379. The cubic root of 9561983 is about 212.2507934430.

The spelling of 9561983 in words is "nine million, five hundred sixty-one thousand, nine hundred eighty-three".