6678123 has 4 divisors (see below), whose sum is σ = 8904168. Its totient is φ = 4452080.

The previous prime is 6678109. The next prime is 6678131. The reversal of 6678123 is 3218766.

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 6678123 - 2⁹ = 6677611 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6678143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113018 + ... + 1113023.

It is an arithmetic number, because the mean of its divisors is an integer number (2226042).

Almost surely, 2^6678123 is an apocalyptic number.

6678123 is a deficient number, since it is larger than the sum of its proper divisors (2226045).

6678123 is a wasteful number, since it uses less digits than its factorization.

6678123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226044.

The product of its digits is 12096, while the sum is 33.

The square root of 6678123 is about 2584.2064546007. The cubic root of 6678123 is about 188.3149523050.

The spelling of 6678123 in words is "six million, six hundred seventy-eight thousand, one hundred twenty-three".