6906655 has 16 divisors (see below), whose sum is σ = 9705024. Its totient is φ = 4619520.

The previous prime is 6906649. The next prime is 6906661. The reversal of 6906655 is 5566096.

It is a happy number.

6906655 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6906649) and next prime (6906661).

It is not a de Polignac number, because 6906655 - 2⁷ = 6906527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972 + ... + 3841.

It is an arithmetic number, because the mean of its divisors is an integer number (606564).

Almost surely, 2^6906655 is an apocalyptic number.

6906655 is a deficient number, since it is larger than the sum of its proper divisors (2798369).

6906655 is a wasteful number, since it uses less digits than its factorization.

6906655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866.

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

The square root of 6906655 is about 2628.0515596160. The cubic root of 6906655 is about 190.4390125406.

The spelling of 6906655 in words is "six million, nine hundred six thousand, six hundred fifty-five".