6605745 has 8 divisors (see below), whose sum is σ = 10569216. Its totient is φ = 3523056.

The previous prime is 6605737. The next prime is 6605747. The reversal of 6605745 is 5475066.

6605745 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6605745 - 2³ = 6605737 is a prime.

6605745 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6605747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220177 + ... + 220206.

It is an arithmetic number, because the mean of its divisors is an integer number (1321152).

Almost surely, 2^6605745 is an apocalyptic number.

It is an amenable number.

6605745 is a deficient number, since it is larger than the sum of its proper divisors (3963471).

6605745 is a wasteful number, since it uses less digits than its factorization.

6605745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440391.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 6605745 is about 2570.1643916295. The cubic root of 6605745 is about 187.6321557196.

The spelling of 6605745 in words is "six million, six hundred five thousand, seven hundred forty-five".