6605289 has 6 divisors (see below), whose sum is σ = 9540986. Its totient is φ = 4403520.

The previous prime is 6605281. The next prime is 6605297. The reversal of 6605289 is 9825066.

It is an interprime number because it is at equal distance from previous prime (6605281) and next prime (6605297).

It can be written as a sum of positive squares in only one way, i.e., 5978025 + 627264 = 2445^2 + 792^2 .

It is not a de Polignac number, because 6605289 - 2³ = 6605281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 366952 + ... + 366969.

Almost surely, 2^6605289 is an apocalyptic number.

It is an amenable number.

6605289 is a deficient number, since it is larger than the sum of its proper divisors (2935697).

6605289 is a wasteful number, since it uses less digits than its factorization.

6605289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733927 (or 733924 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 6605289 is about 2570.0756798196. The cubic root of 6605289 is about 187.6278381530.

The spelling of 6605289 in words is "six million, six hundred five thousand, two hundred eighty-nine".