6699423 has 8 divisors (see below), whose sum is σ = 8945200. Its totient is φ = 4459968.

The previous prime is 6699421. The next prime is 6699439. The reversal of 6699423 is 3249966.

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 6699423 - 2¹ = 6699421 is a prime.

It is a Duffinian number.

6699423 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6699421) 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, 2163 + ... + 4251.

It is an arithmetic number, because the mean of its divisors is an integer number (1118150).

Almost surely, 2^6699423 is an apocalyptic number.

6699423 is a deficient number, since it is larger than the sum of its proper divisors (2245777).

6699423 is a wasteful number, since it uses less digits than its factorization.

6699423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161.

The product of its digits is 69984, while the sum is 39.

The square root of 6699423 is about 2588.3243614354. The cubic root of 6699423 is about 188.5149511930.

The spelling of 6699423 in words is "six million, six hundred ninety-nine thousand, four hundred twenty-three".