6818408 has 8 divisors (see below), whose sum is σ = 12784530. Its totient is φ = 3409200.

The previous prime is 6818407. The next prime is 6818429. The reversal of 6818408 is 8048186.

It can be written as a sum of positive squares in only one way, i.e., 4919524 + 1898884 = 2218^2 + 1378^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6818401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426143 + ... + 426158.

Almost surely, 2^6818408 is an apocalyptic number.

It is an amenable number.

6818408 is a deficient number, since it is larger than the sum of its proper divisors (5966122).

6818408 is a wasteful number, since it uses less digits than its factorization.

6818408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852307 (or 852303 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 6818408 is about 2611.2081494971. The cubic root of 6818408 is about 189.6244474638.

The spelling of 6818408 in words is "six million, eight hundred eighteen thousand, four hundred eight".