8220355 has 16 divisors (see below), whose sum is σ = 11589984. Its totient is φ = 5518080.

The previous prime is 8220341. The next prime is 8220379. The reversal of 8220355 is 5530228.

It is not a de Polignac number, because 8220355 - 2¹¹ = 8218307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5034 + ... + 6463.

It is an arithmetic number, because the mean of its divisors is an integer number (724374).

Almost surely, 2^8220355 is an apocalyptic number.

8220355 is a deficient number, since it is larger than the sum of its proper divisors (3369629).

8220355 is a wasteful number, since it uses less digits than its factorization.

8220355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11526.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 8220355 is about 2867.1161469323. The cubic root of 8220355 is about 201.8196851838.

The spelling of 8220355 in words is "eight million, two hundred twenty thousand, three hundred fifty-five".