8221995 has 12 divisors (see below), whose sum is σ = 14251536. Its totient is φ = 4385040.

The previous prime is 8221991. The next prime is 8222009. The reversal of 8221995 is 5991228.

It is not a de Polignac number, because 8221995 - 2² = 8221991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8221991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91311 + ... + 91400.

It is an arithmetic number, because the mean of its divisors is an integer number (1187628).

Almost surely, 2^8221995 is an apocalyptic number.

8221995 is a deficient number, since it is larger than the sum of its proper divisors (6029541).

8221995 is a wasteful number, since it uses less digits than its factorization.

8221995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182722 (or 182719 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 8221995 is about 2867.4021343369. The cubic root of 8221995 is about 201.8331056211.

It can be divided in two parts, 8221 and 995, that added together give a square (9216 = 96²).

The spelling of 8221995 in words is "eight million, two hundred twenty-one thousand, nine hundred ninety-five".