9331440997 has 2 divisors, whose sum is σ = 9331440998. Its totient is φ = 9331440996.

The previous prime is 9331440973. The next prime is 9331441027. The reversal of 9331440997 is 7990441339.

9331440997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7570044036 + 1761396961 = 87006^2 + 41969^2 .

It is a cyclic number.

It is not a de Polignac number, because 9331440997 - 2⁷ = 9331440869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9331440997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9331440967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4665720498 + 4665720499.

It is an arithmetic number, because the mean of its divisors is an integer number (4665720499).

Almost surely, 2^9331440997 is an apocalyptic number.

It is an amenable number.

9331440997 is a deficient number, since it is larger than the sum of its proper divisors (1).

9331440997 is an equidigital number, since it uses as much as digits as its factorization.

9331440997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 9331440997 is about 96599.3840404793. The cubic root of 9331440997 is about 2105.3108958300.

The spelling of 9331440997 in words is "nine billion, three hundred thirty-one million, four hundred forty thousand, nine hundred ninety-seven".