6600906 has 32 divisors (see below), whose sum is σ = 15798720. Its totient is φ = 2030832.

The previous prime is 6600901. The next prime is 6600917. The reversal of 6600906 is 6090066.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 6600906.

It is not an unprimeable number, because it can be changed into a prime (6600901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4000 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (493710).

Almost surely, 2^6600906 is an apocalyptic number.

6600906 is an abundant number, since it is smaller than the sum of its proper divisors (9197814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6600906 is a wasteful number, since it uses less digits than its factorization.

6600906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427 (or 9421 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 6600906 is about 2569.2228396930. Note that the first 3 decimals coincide. The cubic root of 6600906 is about 187.5863282469.

The spelling of 6600906 in words is "six million, six hundred thousand, nine hundred six".