6426587 has 2 divisors, whose sum is σ = 6426588. Its totient is φ = 6426586.

The previous prime is 6426583. The next prime is 6426593. The reversal of 6426587 is 7856246.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6426587 - 2² = 6426583 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6426587.

It is not a weakly prime, because it can be changed into another prime (6426583) 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, 3213293 + 3213294.

It is an arithmetic number, because the mean of its divisors is an integer number (3213294).

Almost surely, 2^6426587 is an apocalyptic number.

6426587 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426587 is an equidigital number, since it uses as much as digits as its factorization.

6426587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 6426587 is about 2535.0713993890. The cubic root of 6426587 is about 185.9202938248.

The spelling of 6426587 in words is "six million, four hundred twenty-six thousand, five hundred eighty-seven".