6398884 has 12 divisors (see below), whose sum is σ = 11219404. Its totient is φ = 3193344.

The previous prime is 6398881. The next prime is 6398897. The reversal of 6398884 is 4888936.

It can be written as a sum of positive squares in 2 ways, for example, as 2310400 + 4088484 = 1520^2 + 2022^2 .

It is not an unprimeable number, because it can be changed into a prime (6398881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504 + ... + 3880.

Almost surely, 2^6398884 is an apocalyptic number.

It is an amenable number.

6398884 is a deficient number, since it is larger than the sum of its proper divisors (4820520).

6398884 is a wasteful number, since it uses less digits than its factorization.

6398884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054 (or 3052 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 6398884 is about 2529.6015496516. The cubic root of 6398884 is about 185.6527610231.

It can be divided in two parts, 639888 and 4, that multiplied together give a palindrome (2559552).

The spelling of 6398884 in words is "six million, three hundred ninety-eight thousand, eight hundred eighty-four".