591622 has 8 divisors (see below), whose sum is σ = 934200. Its totient is φ = 280224.

The previous prime is 591611. The next prime is 591623. The reversal of 591622 is 226195.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (591623) by changing a digit.

591622 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7747 + ... + 7822.

It is an arithmetic number, because the mean of its divisors is an integer number (116775).

2⁵⁹¹⁶²² is an apocalyptic number.

591622 is a deficient number, since it is larger than the sum of its proper divisors (342578).

591622 is a wasteful number, since it uses less digits than its factorization.

591622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15590.

The product of its digits is 1080, while the sum is 25.

The square root of 591622 is about 769.1696821898. The cubic root of 591622 is about 83.9488539741.

It can be divided in two parts, 59 and 1622, that added together give a square (1681 = 41²).

The spelling of 591622 in words is "five hundred ninety-one thousand, six hundred twenty-two".