4391189 has 8 divisors (see below), whose sum is σ = 4805568. Its totient is φ = 3979360.

The previous prime is 4391161. The next prime is 4391221. The reversal of 4391189 is 9811934.

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

It is a de Polignac number, because none of the positive numbers 2^k-4391189 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 (4391089) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6464 + ... + 7110.

It is an arithmetic number, because the mean of its divisors is an integer number (600696).

Almost surely, 2^4391189 is an apocalyptic number.

It is an amenable number.

4391189 is a deficient number, since it is larger than the sum of its proper divisors (414379).

4391189 is a wasteful number, since it uses less digits than its factorization.

4391189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275.

The product of its digits is 7776, while the sum is 35.

The square root of 4391189 is about 2095.5164041353. The cubic root of 4391189 is about 163.7548016384.

It can be divided in two parts, 4 and 391189, that added together give a palindrome (391193).

The spelling of 4391189 in words is "four million, three hundred ninety-one thousand, one hundred eighty-nine".