6428369 has 2 divisors, whose sum is σ = 6428370. Its totient is φ = 6428368.

The previous prime is 6428353. The next prime is 6428393. The reversal of 6428369 is 9638246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5452225 + 976144 = 2335^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 6428369 - 2⁴ = 6428353 is a prime.

It is a super-2 number, since 2×6428369² = 82647856000322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6428399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214184 + 3214185.

It is an arithmetic number, because the mean of its divisors is an integer number (3214185).

Almost surely, 2^6428369 is an apocalyptic number.

It is an amenable number.

6428369 is a deficient number, since it is larger than the sum of its proper divisors (1).

6428369 is an equidigital number, since it uses as much as digits as its factorization.

6428369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 6428369 is about 2535.4228444187. The cubic root of 6428369 is about 185.9374765765.

The spelling of 6428369 in words is "six million, four hundred twenty-eight thousand, three hundred sixty-nine".