6921343 has 16 divisors (see below), whose sum is σ = 8416800. Its totient is φ = 5604480.

The previous prime is 6921337. The next prime is 6921347. The reversal of 6921343 is 3431296.

It is a cyclic number.

It is not a de Polignac number, because 6921343 - 2⁹ = 6920831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6921347) 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, 3313 + ... + 4981.

It is an arithmetic number, because the mean of its divisors is an integer number (526050).

Almost surely, 2^6921343 is an apocalyptic number.

6921343 is a deficient number, since it is larger than the sum of its proper divisors (1495457).

6921343 is a wasteful number, since it uses less digits than its factorization.

6921343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722.

The product of its digits is 3888, while the sum is 28.

The square root of 6921343 is about 2630.8445412073. The cubic root of 6921343 is about 190.5739156495.

It can be divided in two parts, 69 and 21343, that added together give a palindrome (21412).

The spelling of 6921343 in words is "six million, nine hundred twenty-one thousand, three hundred forty-three".