6393667 has 6 divisors (see below), whose sum is σ = 7437588. Its totient is φ = 5480244.

The previous prime is 6393661. The next prime is 6393691. The reversal of 6393667 is 7663936.

It is not a de Polignac number, because 6393667 - 2¹⁵ = 6360899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6393661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65193 + ... + 65290.

It is an arithmetic number, because the mean of its divisors is an integer number (1239598).

Almost surely, 2^6393667 is an apocalyptic number.

6393667 is a deficient number, since it is larger than the sum of its proper divisors (1043921).

6393667 is a wasteful number, since it uses less digits than its factorization.

6393667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130497 (or 130490 counting only the distinct ones).

The product of its digits is 122472, while the sum is 40.

The square root of 6393667 is about 2528.5701493136. The cubic root of 6393667 is about 185.6022931711.

The spelling of 6393667 in words is "six million, three hundred ninety-three thousand, six hundred sixty-seven".