6887923 has 8 divisors (see below), whose sum is σ = 7983360. Its totient is φ = 5820360.

The previous prime is 6887917. The next prime is 6887927. The reversal of 6887923 is 3297886.

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

It is not a de Polignac number, because 6887923 - 2⁹ = 6887411 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁵ + 8 + 8⁷ + 7 + 9 + 2 + 3¹⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 6887923.

It is not an unprimeable number, because it can be changed into a prime (6887927) 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 7 ways as a sum of consecutive naturals, for example, 6433 + ... + 7426.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^6887923 is an apocalyptic number.

6887923 is a deficient number, since it is larger than the sum of its proper divisors (1095437).

6887923 is a wasteful number, since it uses less digits than its factorization.

6887923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13937.

The product of its digits is 145152, while the sum is 43.

The square root of 6887923 is about 2624.4852828698. The cubic root of 6887923 is about 190.2666892045.

The spelling of 6887923 in words is "six million, eight hundred eighty-seven thousand, nine hundred twenty-three".