6212389 has 2 divisors, whose sum is σ = 6212390. Its totient is φ = 6212388.

The previous prime is 6212387. The next prime is 6212407. The reversal of 6212389 is 9832126.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3932289 + 2280100 = 1983^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 6212389 - 2¹ = 6212387 is a prime.

Together with 6212387, it forms a pair of twin primes.

It is a Chen prime.

6212389 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6212389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6212383) 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 as a sum of consecutive naturals, namely, 3106194 + 3106195.

It is an arithmetic number, because the mean of its divisors is an integer number (3106195).

Almost surely, 2^6212389 is an apocalyptic number.

It is an amenable number.

6212389 is a deficient number, since it is larger than the sum of its proper divisors (1).

6212389 is an equidigital number, since it uses as much as digits as its factorization.

6212389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 6212389 is about 2492.4664491222. The cubic root of 6212389 is about 183.8313376463.

The spelling of 6212389 in words is "six million, two hundred twelve thousand, three hundred eighty-nine".