6385987 has 2 divisors, whose sum is σ = 6385988. Its totient is φ = 6385986.

The previous prime is 6385943. The next prime is 6385993. The reversal of 6385987 is 7895836.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6385987 - 2⁷ = 6385859 is a prime.

It is a Chen prime.

6385987 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6385997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3192993 + 3192994.

It is an arithmetic number, because the mean of its divisors is an integer number (3192994).

Almost surely, 2^6385987 is an apocalyptic number.

6385987 is a deficient number, since it is larger than the sum of its proper divisors (1).

6385987 is an equidigital number, since it uses as much as digits as its factorization.

6385987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 6385987 is about 2527.0510481587. The cubic root of 6385987 is about 185.5279489423.

The spelling of 6385987 in words is "six million, three hundred eighty-five thousand, nine hundred eighty-seven".