6609331 has 2 divisors, whose sum is σ = 6609332. Its totient is φ = 6609330.

The previous prime is 6609313. The next prime is 6609341. The reversal of 6609331 is 1339066.

Together with previous prime (6609313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6609331 - 2⁵ = 6609299 is a prime.

It is a super-2 number, since 2×6609331² = 87366512535122, which contains 22 as substring.

It is a Chen prime.

6609331 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6609331.

It is not a weakly prime, because it can be changed into another prime (6609301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3304665 + 3304666.

It is an arithmetic number, because the mean of its divisors is an integer number (3304666).

Almost surely, 2^6609331 is an apocalyptic number.

6609331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6609331 is an equidigital number, since it uses as much as digits as its factorization.

6609331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 6609331 is about 2570.8619177233. The cubic root of 6609331 is about 187.6661022915. Note that the first 3 decimals are identical.

The spelling of 6609331 in words is "six million, six hundred nine thousand, three hundred thirty-one".