6672289 has 8 divisors (see below), whose sum is σ = 7230440. Its totient is φ = 6157008.

The previous prime is 6672283. The next prime is 6672301. The reversal of 6672289 is 9822766.

It can be written as a sum of positive squares in 4 ways, for example, as 984064 + 5688225 = 992^2 + 2385^2 .

It is not a de Polignac number, because 6672289 - 2⁵ = 6672257 is a prime.

It is a Duffinian number.

6672289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6672283) 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, 679 + ... + 3715.

It is an arithmetic number, because the mean of its divisors is an integer number (903805).

Almost surely, 2^6672289 is an apocalyptic number.

It is an amenable number.

6672289 is a deficient number, since it is larger than the sum of its proper divisors (558151).

6672289 is an equidigital number, since it uses as much as digits as its factorization.

6672289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3050 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 6672289 is about 2583.0774281852. The cubic root of 6672289 is about 188.2600990921.

The spelling of 6672289 in words is "six million, six hundred seventy-two thousand, two hundred eighty-nine".