6623871 has 8 divisors (see below), whose sum is σ = 8981760. Its totient is φ = 4340952.

The previous prime is 6623857. The next prime is 6623873. The reversal of 6623871 is 1783266.

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

It is not a de Polignac number, because 6623871 - 2¹⁴ = 6607487 is a prime.

6623871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6623873) 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, 18535 + ... + 18888.

It is an arithmetic number, because the mean of its divisors is an integer number (1122720).

Almost surely, 2^6623871 is an apocalyptic number.

6623871 is a deficient number, since it is larger than the sum of its proper divisors (2357889).

6623871 is a wasteful number, since it uses less digits than its factorization.

6623871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37485.

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

The square root of 6623871 is about 2573.6882095545. The cubic root of 6623871 is about 187.8036183084.

The spelling of 6623871 in words is "six million, six hundred twenty-three thousand, eight hundred seventy-one".