6655906 has 8 divisors (see below), whose sum is σ = 10328220. Its totient is φ = 3213168.

The previous prime is 6655903. The next prime is 6655907. The reversal of 6655906 is 6095566.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6630625 + 25281 = 2575^2 + 159^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6655903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57321 + ... + 57436.

Almost surely, 2^6655906 is an apocalyptic number.

6655906 is a deficient number, since it is larger than the sum of its proper divisors (3672314).

6655906 is a wasteful number, since it uses less digits than its factorization.

6655906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114788.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 6655906 is about 2579.9042617896. The cubic root of 6655906 is about 188.1058894948.

The spelling of 6655906 in words is "six million, six hundred fifty-five thousand, nine hundred six".