8220885 has 8 divisors (see below), whose sum is σ = 13153440. Its totient is φ = 4384464.

The previous prime is 8220881. The next prime is 8220887. The reversal of 8220885 is 5880228.

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

It is not a de Polignac number, because 8220885 - 2² = 8220881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274015 + ... + 274044.

It is an arithmetic number, because the mean of its divisors is an integer number (1644180).

Almost surely, 2^8220885 is an apocalyptic number.

It is an amenable number.

8220885 is a deficient number, since it is larger than the sum of its proper divisors (4932555).

8220885 is a wasteful number, since it uses less digits than its factorization.

8220885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548067.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 8220885 is about 2867.2085728108. The cubic root of 8220885 is about 201.8240224715.

The spelling of 8220885 in words is "eight million, two hundred twenty thousand, eight hundred eighty-five".