6658867 has 4 divisors (see below), whose sum is σ = 6784560. Its totient is φ = 6533176.

The previous prime is 6658859. The next prime is 6658871. The reversal of 6658867 is 7688566.

It is a happy number.

6658867 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6658867 - 2³ = 6658859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6658837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62767 + ... + 62872.

It is an arithmetic number, because the mean of its divisors is an integer number (1696140).

Almost surely, 2^6658867 is an apocalyptic number.

6658867 is a deficient number, since it is larger than the sum of its proper divisors (125693).

6658867 is a wasteful number, since it uses less digits than its factorization.

6658867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125692.

The product of its digits is 483840, while the sum is 46.

The square root of 6658867 is about 2580.4780564849. The cubic root of 6658867 is about 188.1337794603.

The spelling of 6658867 in words is "six million, six hundred fifty-eight thousand, eight hundred sixty-seven".