6600945 has 16 divisors (see below), whose sum is σ = 11374272. Its totient is φ = 3249600.

The previous prime is 6600943. The next prime is 6600949. The reversal of 6600945 is 5490066.

6600945 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6600945 - 2¹ = 6600943 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6600943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16731 + ... + 17120.

It is an arithmetic number, because the mean of its divisors is an integer number (710892).

Almost surely, 2^6600945 is an apocalyptic number.

6600945 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6600945 is a deficient number, since it is larger than the sum of its proper divisors (4773327).

6600945 is a wasteful number, since it uses less digits than its factorization.

6600945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33872.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6600945 is about 2569.2304295255. The cubic root of 6600945 is about 187.5866976837.

The spelling of 6600945 in words is "six million, six hundred thousand, nine hundred forty-five".