6478408 has 8 divisors (see below), whose sum is σ = 12147030. Its totient is φ = 3239200.

The previous prime is 6478379. The next prime is 6478421. The reversal of 6478408 is 8048746.

It can be written as a sum of positive squares in only one way, i.e., 3526884 + 2951524 = 1878^2 + 1718^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404893 + ... + 404908.

Almost surely, 2^6478408 is an apocalyptic number.

It is an amenable number.

6478408 is a deficient number, since it is larger than the sum of its proper divisors (5668622).

6478408 is a wasteful number, since it uses less digits than its factorization.

6478408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809807 (or 809803 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 6478408 is about 2545.2716947312. The cubic root of 6478408 is about 186.4186814705.

It can be divided in two parts, 6478 and 408, that added together give a palindrome (6886).

The spelling of 6478408 in words is "six million, four hundred seventy-eight thousand, four hundred eight".