6422387 has 2 divisors, whose sum is σ = 6422388. Its totient is φ = 6422386.

The previous prime is 6422371. The next prime is 6422407. The reversal of 6422387 is 7832246.

6422387 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 is a cyclic number.

It is not a de Polignac number, because 6422387 - 2⁴ = 6422371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6422357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211193 + 3211194.

It is an arithmetic number, because the mean of its divisors is an integer number (3211194).

Almost surely, 2^6422387 is an apocalyptic number.

6422387 is a deficient number, since it is larger than the sum of its proper divisors (1).

6422387 is an equidigital number, since it uses as much as digits as its factorization.

6422387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 6422387 is about 2534.2428849658. The cubic root of 6422387 is about 185.8797831876.

The spelling of 6422387 in words is "six million, four hundred twenty-two thousand, three hundred eighty-seven".