8221903091 has 8 divisors (see below), whose sum is σ = 8384646960. Its totient is φ = 8059441312.

The previous prime is 8221903087. The next prime is 8221903121. The reversal of 8221903091 is 1903091228.

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

It is a cyclic number.

It is not a de Polignac number, because 8221903091 - 2² = 8221903087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8221903891) 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, 11165 + ... + 128718.

It is an arithmetic number, because the mean of its divisors is an integer number (1048080870).

Almost surely, 2^8221903091 is an apocalyptic number.

8221903091 is a deficient number, since it is larger than the sum of its proper divisors (162743869).

8221903091 is a wasteful number, since it uses less digits than its factorization.

8221903091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141045.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 8221903091 is about 90674.7103166037. The cubic root of 8221903091 is about 2018.3235355915.

The spelling of 8221903091 in words is "eight billion, two hundred twenty-one million, nine hundred three thousand, ninety-one".