6608891 has 2 divisors, whose sum is σ = 6608892. Its totient is φ = 6608890.

The previous prime is 6608867. The next prime is 6608911. The reversal of 6608891 is 1988066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6608891 - 2¹⁴ = 6592507 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6608821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3304445 + 3304446.

It is an arithmetic number, because the mean of its divisors is an integer number (3304446).

Almost surely, 2^6608891 is an apocalyptic number.

6608891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6608891 is an equidigital number, since it uses as much as digits as its factorization.

6608891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 6608891 is about 2570.7763418859. The cubic root of 6608891 is about 187.6619377289.

The spelling of 6608891 in words is "six million, six hundred eight thousand, eight hundred ninety-one".