9611491 has 2 divisors, whose sum is σ = 9611492. Its totient is φ = 9611490.

The previous prime is 9611431. The next prime is 9611521. The reversal of 9611491 is 1941169.

It is a strong prime.

It is an emirp because it is prime and its reverse (1941169) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9611491 - 2¹³ = 9603299 is a prime.

It is not a weakly prime, because it can be changed into another prime (9611431) 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, 4805745 + 4805746.

It is an arithmetic number, because the mean of its divisors is an integer number (4805746).

Almost surely, 2^9611491 is an apocalyptic number.

9611491 is a deficient number, since it is larger than the sum of its proper divisors (1).

9611491 is an equidigital number, since it uses as much as digits as its factorization.

9611491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 31.

The square root of 9611491 is about 3100.2404745439. The cubic root of 9611491 is about 212.6164787028.

The spelling of 9611491 in words is "nine million, six hundred eleven thousand, four hundred ninety-one".