6821214 has 8 divisors (see below), whose sum is σ = 13642440. Its totient is φ = 2273736.

The previous prime is 6821207. The next prime is 6821231. The reversal of 6821214 is 4121286.

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

6821214 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568429 + ... + 568440.

It is an arithmetic number, because the mean of its divisors is an integer number (1705305).

Almost surely, 2^6821214 is an apocalyptic number.

6821214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6821214 is a wasteful number, since it uses less digits than its factorization.

6821214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136874.

The product of its digits is 768, while the sum is 24.

The square root of 6821214 is about 2611.7453934103. The cubic root of 6821214 is about 189.6504561365.

The spelling of 6821214 in words is "six million, eight hundred twenty-one thousand, two hundred fourteen".