6906656 has 12 divisors (see below), whose sum is σ = 13597542. Its totient is φ = 3453312.

The previous prime is 6906649. The next prime is 6906661. The reversal of 6906656 is 6566096.

It can be written as a sum of positive squares in only one way, i.e., 5216656 + 1690000 = 2284^2 + 1300^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107885 + ... + 107948.

Almost surely, 2^6906656 is an apocalyptic number.

It is an amenable number.

6906656 is a deficient number, since it is larger than the sum of its proper divisors (6690886).

6906656 is a wasteful number, since it uses less digits than its factorization.

6906656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215843 (or 215835 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 6906656 is about 2628.0517498710. The cubic root of 6906656 is about 190.4390217316.

The spelling of 6906656 in words is "six million, nine hundred six thousand, six hundred fifty-six".