6408856 has 8 divisors (see below), whose sum is σ = 12016620. Its totient is φ = 3204424.

The previous prime is 6408851. The next prime is 6408859. The reversal of 6408856 is 6588046.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6408851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400546 + ... + 400561.

Almost surely, 2^6408856 is an apocalyptic number.

It is an amenable number.

6408856 is a deficient number, since it is larger than the sum of its proper divisors (5607764).

6408856 is a wasteful number, since it uses less digits than its factorization.

6408856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801113 (or 801109 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 6408856 is about 2531.5718437366. The cubic root of 6408856 is about 185.7491511886.

The spelling of 6408856 in words is "six million, four hundred eight thousand, eight hundred fifty-six".