6722589 has 4 divisors (see below), whose sum is σ = 8963456. Its totient is φ = 4481724.

The previous prime is 6722587. The next prime is 6722593. The reversal of 6722589 is 9852276.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6722589 - 2¹ = 6722587 is a prime.

It is a D-number.

It is a Duffinian number.

6722589 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120429 + ... + 1120434.

It is an arithmetic number, because the mean of its divisors is an integer number (2240864).

Almost surely, 2^6722589 is an apocalyptic number.

It is an amenable number.

6722589 is a deficient number, since it is larger than the sum of its proper divisors (2240867).

6722589 is a wasteful number, since it uses less digits than its factorization.

6722589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240866.

The product of its digits is 60480, while the sum is 39.

The square root of 6722589 is about 2592.7955954915. The cubic root of 6722589 is about 188.7319904458.

The spelling of 6722589 in words is "six million, seven hundred twenty-two thousand, five hundred eighty-nine".