6326389 has 2 divisors, whose sum is σ = 6326390. Its totient is φ = 6326388.

The previous prime is 6326381. The next prime is 6326443. The reversal of 6326389 is 9836236.

It is a happy number.

6326389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 3122289 = 1790^2 + 1767^2 .

It is a cyclic number.

It is not a de Polignac number, because 6326389 - 2³ = 6326381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6326381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3163194 + 3163195.

It is an arithmetic number, because the mean of its divisors is an integer number (3163195).

Almost surely, 2^6326389 is an apocalyptic number.

It is an amenable number.

6326389 is a deficient number, since it is larger than the sum of its proper divisors (1).

6326389 is an equidigital number, since it uses as much as digits as its factorization.

6326389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 6326389 is about 2515.2314008854. The cubic root of 6326389 is about 184.9489900756.

It can be divided in two parts, 632 and 6389, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 6326389 in words is "six million, three hundred twenty-six thousand, three hundred eighty-nine".