6978211 has 8 divisors (see below), whose sum is σ = 7411824. Its totient is φ = 6547200.

The previous prime is 6978199. The next prime is 6978221. The reversal of 6978211 is 1128796.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6978211 - 2⁹ = 6977699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6978221) 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 7 ways as a sum of consecutive naturals, for example, 9876 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (926478).

Almost surely, 2^6978211 is an apocalyptic number.

6978211 is a deficient number, since it is larger than the sum of its proper divisors (433613).

6978211 is a wasteful number, since it uses less digits than its factorization.

6978211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its digits is 6048, while the sum is 34.

The square root of 6978211 is about 2641.6303677843. The cubic root of 6978211 is about 191.0944317089.

The spelling of 6978211 in words is "six million, nine hundred seventy-eight thousand, two hundred eleven".