9546991 has 2 divisors, whose sum is σ = 9546992. Its totient is φ = 9546990.

The previous prime is 9546961. The next prime is 9547007. The reversal of 9546991 is 1996459.

It is a strong prime.

It is an emirp because it is prime and its reverse (1996459) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9546991 - 2⁵ = 9546959 is a prime.

It is a super-2 number, since 2×9546991² = 182290074308162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9546931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4773495 + 4773496.

It is an arithmetic number, because the mean of its divisors is an integer number (4773496).

Almost surely, 2^9546991 is an apocalyptic number.

9546991 is a deficient number, since it is larger than the sum of its proper divisors (1).

9546991 is an equidigital number, since it uses as much as digits as its factorization.

9546991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 43.

The square root of 9546991 is about 3089.8205449508. The cubic root of 9546991 is about 212.1398078043.

The spelling of 9546991 in words is "nine million, five hundred forty-six thousand, nine hundred ninety-one".