6321406 has 32 divisors (see below), whose sum is σ = 11934720. Its totient is φ = 2444256.

The previous prime is 6321401. The next prime is 6321407. The reversal of 6321406 is 6041236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6321401) 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 in 15 ways as a sum of consecutive naturals, for example, 8185 + ... + 8923.

It is an arithmetic number, because the mean of its divisors is an integer number (372960).

Almost surely, 2^6321406 is an apocalyptic number.

6321406 is a deficient number, since it is larger than the sum of its proper divisors (5613314).

6321406 is a wasteful number, since it uses less digits than its factorization.

6321406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6321406 is about 2514.2406408298. The cubic root of 6321406 is about 184.9004187716.

The spelling of 6321406 in words is "six million, three hundred twenty-one thousand, four hundred six".