6866604 has 36 divisors (see below), whose sum is σ = 18114096. Its totient is φ = 2189088.

The previous prime is 6866551. The next prime is 6866609. The reversal of 6866604 is 4066686.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6866609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3319 + ... + 4974.

Almost surely, 2^6866604 is an apocalyptic number.

It is an amenable number.

6866604 is an abundant number, since it is smaller than the sum of its proper divisors (11247492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6866604 is a wasteful number, since it uses less digits than its factorization.

6866604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326 (or 8321 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 6866604 is about 2620.4205769304. The cubic root of 6866604 is about 190.0701864428.

The spelling of 6866604 in words is "six million, eight hundred sixty-six thousand, six hundred four".