6391874 has 8 divisors (see below), whose sum is σ = 9599040. Its totient is φ = 3192196.

The previous prime is 6391841. The next prime is 6391877. The reversal of 6391874 is 4781936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6391877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (1199880).

Almost surely, 2^6391874 is an apocalyptic number.

6391874 is a deficient number, since it is larger than the sum of its proper divisors (3207166).

6391874 is a wasteful number, since it uses less digits than its factorization.

6391874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744.

The product of its digits is 36288, while the sum is 38.

The square root of 6391874 is about 2528.2155762514. The cubic root of 6391874 is about 185.5849418335.

The spelling of 6391874 in words is "six million, three hundred ninety-one thousand, eight hundred seventy-four".