6698144 has 12 divisors (see below), whose sum is σ = 13187034. Its totient is φ = 3349056.

The previous prime is 6698143. The next prime is 6698149. The reversal of 6698144 is 4418966.

It can be written as a sum of positive squares in only one way, i.e., 6697744 + 400 = 2588^2 + 20^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6698098 and 6698107.

It is not an unprimeable number, because it can be changed into a prime (6698143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104627 + ... + 104690.

Almost surely, 2^6698144 is an apocalyptic number.

It is an amenable number.

6698144 is a deficient number, since it is larger than the sum of its proper divisors (6488890).

6698144 is a wasteful number, since it uses less digits than its factorization.

6698144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209327 (or 209319 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 6698144 is about 2588.0772785989. The cubic root of 6698144 is about 188.5029538430.

The spelling of 6698144 in words is "six million, six hundred ninety-eight thousand, one hundred forty-four".