6391622 has 8 divisors (see below), whose sum is σ = 9611472. Its totient is φ = 3187800.

The previous prime is 6391607. The next prime is 6391663. The reversal of 6391622 is 2261936.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2954 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (1201434).

Almost surely, 2^6391622 is an apocalyptic number.

6391622 is a deficient number, since it is larger than the sum of its proper divisors (3219850).

6391622 is a wasteful number, since it uses less digits than its factorization.

6391622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014.

The product of its digits is 3888, while the sum is 29.

The square root of 6391622 is about 2528.1657382379. The cubic root of 6391622 is about 185.5825029024.

The spelling of 6391622 in words is "six million, three hundred ninety-one thousand, six hundred twenty-two".