6621226 has 8 divisors (see below), whose sum is σ = 10162944. Its totient is φ = 3233580.

The previous prime is 6621191. The next prime is 6621233. The reversal of 6621226 is 6221266.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6621226.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38410 + ... + 38581.

It is an arithmetic number, because the mean of its divisors is an integer number (1270368).

Almost surely, 2^6621226 is an apocalyptic number.

6621226 is a deficient number, since it is larger than the sum of its proper divisors (3541718).

6621226 is a wasteful number, since it uses less digits than its factorization.

6621226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77036.

The product of its digits is 1728, while the sum is 25.

The square root of 6621226 is about 2573.1743042398. The cubic root of 6621226 is about 187.7786174842.

The spelling of 6621226 in words is "six million, six hundred twenty-one thousand, two hundred twenty-six".