6669123 has 8 divisors (see below), whose sum is σ = 9179136. Its totient is φ = 4302600.

The previous prime is 6669121. The next prime is 6669137. The reversal of 6669123 is 3219666.

It is a happy number.

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

It is not a de Polignac number, because 6669123 - 2¹ = 6669121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6669121) 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 7 ways as a sum of consecutive naturals, for example, 35763 + ... + 35948.

It is an arithmetic number, because the mean of its divisors is an integer number (1147392).

Almost surely, 2^6669123 is an apocalyptic number.

6669123 is a deficient number, since it is larger than the sum of its proper divisors (2510013).

6669123 is a wasteful number, since it uses less digits than its factorization.

6669123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71745.

The product of its digits is 11664, while the sum is 33.

The square root of 6669123 is about 2582.4645205695. The cubic root of 6669123 is about 188.2303179195.

The spelling of 6669123 in words is "six million, six hundred sixty-nine thousand, one hundred twenty-three".