6821342 has 16 divisors (see below), whose sum is σ = 11750400. Its totient is φ = 2937240.

The previous prime is 6821303. The next prime is 6821383. The reversal of 6821342 is 2431286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7742 + ... + 8577.

It is an arithmetic number, because the mean of its divisors is an integer number (734400).

Almost surely, 2^6821342 is an apocalyptic number.

6821342 is a deficient number, since it is larger than the sum of its proper divisors (4929058).

6821342 is a wasteful number, since it uses less digits than its factorization.

6821342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16351.

The product of its digits is 2304, while the sum is 26.

The square root of 6821342 is about 2611.7698979811. The cubic root of 6821342 is about 189.6516423920.

The spelling of 6821342 in words is "six million, eight hundred twenty-one thousand, three hundred forty-two".