6950221 has 2 divisors, whose sum is σ = 6950222. Its totient is φ = 6950220.

The previous prime is 6950201. The next prime is 6950239. The reversal of 6950221 is 1220596.

6950221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5978025 + 972196 = 2445^2 + 986^2 .

It is a cyclic number.

It is not a de Polignac number, because 6950221 - 2⁵ = 6950189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6950201) by changing a digit.

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 as a sum of consecutive naturals, namely, 3475110 + 3475111.

It is an arithmetic number, because the mean of its divisors is an integer number (3475111).

Almost surely, 2^6950221 is an apocalyptic number.

It is an amenable number.

6950221 is a deficient number, since it is larger than the sum of its proper divisors (1).

6950221 is an equidigital number, since it uses as much as digits as its factorization.

6950221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 6950221 is about 2636.3271799987. The cubic root of 6950221 is about 190.8385924745.

The spelling of 6950221 in words is "six million, nine hundred fifty thousand, two hundred twenty-one".