6221678 has 8 divisors (see below), whose sum is σ = 9345072. Its totient is φ = 3106656.

The previous prime is 6221671. The next prime is 6221693. The reversal of 6221678 is 8761226.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326 + ... + 3542.

It is an arithmetic number, because the mean of its divisors is an integer number (1168134).

Almost surely, 2^6221678 is an apocalyptic number.

6221678 is a deficient number, since it is larger than the sum of its proper divisors (3123394).

6221678 is a wasteful number, since it uses less digits than its factorization.

6221678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186.

The product of its digits is 8064, while the sum is 32.

The square root of 6221678 is about 2494.3291683336. The cubic root of 6221678 is about 183.9229158839.

The spelling of 6221678 in words is "six million, two hundred twenty-one thousand, six hundred seventy-eight".