6394005 has 16 divisors (see below), whose sum is σ = 11367360. Its totient is φ = 3410064.

The previous prime is 6393983. The next prime is 6394009. The reversal of 6394005 is 5004936.

It is a happy number.

It is not a de Polignac number, because 6394005 - 2⁶ = 6393941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 6394005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6394009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23547 + ... + 23816.

It is an arithmetic number, because the mean of its divisors is an integer number (710460).

Almost surely, 2^6394005 is an apocalyptic number.

It is an amenable number.

6394005 is a deficient number, since it is larger than the sum of its proper divisors (4973355).

6394005 is a wasteful number, since it uses less digits than its factorization.

6394005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47377 (or 47371 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 6394005 is about 2528.6369846223. The cubic root of 6394005 is about 185.6055637235.

The spelling of 6394005 in words is "six million, three hundred ninety-four thousand, five".