6228389 has 2 divisors, whose sum is σ = 6228390. Its totient is φ = 6228388.

The previous prime is 6228373. The next prime is 6228413. The reversal of 6228389 is 9838226.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6225025 + 3364 = 2495^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 6228389 - 2⁴ = 6228373 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6228329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3114194 + 3114195.

It is an arithmetic number, because the mean of its divisors is an integer number (3114195).

Almost surely, 2^6228389 is an apocalyptic number.

It is an amenable number.

6228389 is a deficient number, since it is larger than the sum of its proper divisors (1).

6228389 is an equidigital number, since it uses as much as digits as its factorization.

6228389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 6228389 is about 2495.6740572439. The cubic root of 6228389 is about 183.9890214779.

The spelling of 6228389 in words is "six million, two hundred twenty-eight thousand, three hundred eighty-nine".