6689104 has 10 divisors (see below), whose sum is σ = 12960170. Its totient is φ = 3344544.

The previous prime is 6689101. The next prime is 6689117. The reversal of 6689104 is 4019866.

It can be written as a sum of positive squares in only one way, i.e., 6512704 + 176400 = 2552^2 + 420^2 .

It is a super-2 number, since 2×6689104² = 89488224645632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6689104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6689101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209019 + ... + 209050.

It is an arithmetic number, because the mean of its divisors is an integer number (1296017).

Almost surely, 2^6689104 is an apocalyptic number.

It is an amenable number.

6689104 is a deficient number, since it is larger than the sum of its proper divisors (6271066).

6689104 is a wasteful number, since it uses less digits than its factorization.

6689104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418077 (or 418071 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 6689104 is about 2586.3302186689. The cubic root of 6689104 is about 188.4181127340.

The spelling of 6689104 in words is "six million, six hundred eighty-nine thousand, one hundred four".