6605849 has 2 divisors, whose sum is σ = 6605850. Its totient is φ = 6605848.

The previous prime is 6605831. The next prime is 6605857. The reversal of 6605849 is 9485066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6538249 + 67600 = 2557^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 6605849 - 2⁸ = 6605593 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6605149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3302924 + 3302925.

It is an arithmetic number, because the mean of its divisors is an integer number (3302925).

Almost surely, 2^6605849 is an apocalyptic number.

It is an amenable number.

6605849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6605849 is an equidigital number, since it uses as much as digits as its factorization.

6605849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6605849 is about 2570.1846237187. The cubic root of 6605849 is about 187.6331404000.

The spelling of 6605849 in words is "six million, six hundred five thousand, eight hundred forty-nine".