9611431 has 2 divisors, whose sum is σ = 9611432. Its totient is φ = 9611430.

The previous prime is 9611429. The next prime is 9611491. The reversal of 9611431 is 1341169.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9611431 - 2¹ = 9611429 is a prime.

It is a super-2 number, since 2×9611431² = 184759211735522, which contains 22 as substring.

Together with 9611429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 9611396 and 9611405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9611491) 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, 4805715 + 4805716.

It is an arithmetic number, because the mean of its divisors is an integer number (4805716).

Almost surely, 2^9611431 is an apocalyptic number.

9611431 is a deficient number, since it is larger than the sum of its proper divisors (1).

9611431 is an equidigital number, since it uses as much as digits as its factorization.

9611431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 25.

The square root of 9611431 is about 3100.2307978601. The cubic root of 9611431 is about 212.6160362805.

The spelling of 9611431 in words is "nine million, six hundred eleven thousand, four hundred thirty-one".