6623191 has 8 divisors (see below), whose sum is σ = 6998400. Its totient is φ = 6250680.

The previous prime is 6623173. The next prime is 6623203. The reversal of 6623191 is 1913266.

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

It is a cyclic number.

It is not a de Polignac number, because 6623191 - 2⁵ = 6623159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6623101) 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, 6336 + ... + 7306.

It is an arithmetic number, because the mean of its divisors is an integer number (874800).

Almost surely, 2^6623191 is an apocalyptic number.

6623191 is a deficient number, since it is larger than the sum of its proper divisors (375209).

6623191 is a wasteful number, since it uses less digits than its factorization.

6623191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349.

The product of its digits is 1944, while the sum is 28.

The square root of 6623191 is about 2573.5561000297. The cubic root of 6623191 is about 187.7971915110.

The spelling of 6623191 in words is "six million, six hundred twenty-three thousand, one hundred ninety-one".