4197389 has 6 divisors (see below), whose sum is σ = 4882734. Its totient is φ = 3597720.

The previous prime is 4197367. The next prime is 4197407. The reversal of 4197389 is 9837914.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 1605289 = 1610^2 + 1267^2 .

It is not a de Polignac number, because 4197389 - 2⁸ = 4197133 is a prime.

It is a super-3 number, since 3×4197389³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 4¹¹ + 1 + 9 + 7⁴ + 3⁴ + 8³ + 9² .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4193389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42782 + ... + 42879.

It is an arithmetic number, because the mean of its divisors is an integer number (813789).

Almost surely, 2^4197389 is an apocalyptic number.

4197389 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4197389 is a deficient number, since it is larger than the sum of its proper divisors (685345).

4197389 is an equidigital number, since it uses as much as digits as its factorization.

4197389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85675 (or 85668 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 4197389 is about 2048.7530353852. The cubic root of 4197389 is about 161.3094238449.

The spelling of 4197389 in words is "four million, one hundred ninety-seven thousand, three hundred eighty-nine".