6406906 has 16 divisors (see below), whose sum is σ = 10741248. Its totient is φ = 2840800.

The previous prime is 6406879. The next prime is 6406913. The reversal of 6406906 is 6096046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650 + ... + 4453.

It is an arithmetic number, because the mean of its divisors is an integer number (671328).

Almost surely, 2^6406906 is an apocalyptic number.

6406906 is a deficient number, since it is larger than the sum of its proper divisors (4334342).

6406906 is a wasteful number, since it uses less digits than its factorization.

6406906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7157.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6406906 is about 2531.1866782203. The cubic root of 6406906 is about 185.7303101980.

The spelling of 6406906 in words is "six million, four hundred six thousand, nine hundred six".