6657873 has 8 divisors (see below), whose sum is σ = 8904000. Its totient is φ = 4425168.

The previous prime is 6657853. The next prime is 6657881. The reversal of 6657873 is 3787566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6657873 - 2¹³ = 6649681 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

6657873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6657853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133 + ... + 4226.

It is an arithmetic number, because the mean of its divisors is an integer number (1113000).

Almost surely, 2^6657873 is an apocalyptic number.

It is an amenable number.

6657873 is a deficient number, since it is larger than the sum of its proper divisors (2246127).

6657873 is a wasteful number, since it uses less digits than its factorization.

6657873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711.

The product of its digits is 211680, while the sum is 42.

The square root of 6657873 is about 2580.2854493253. The cubic root of 6657873 is about 188.1244177934.

The spelling of 6657873 in words is "six million, six hundred fifty-seven thousand, eight hundred seventy-three".