8221903087 has 2 divisors, whose sum is σ = 8221903088. Its totient is φ = 8221903086.

The previous prime is 8221903073. The next prime is 8221903121. The reversal of 8221903087 is 7803091228.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8221903087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8221900087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4110951543 + 4110951544.

It is an arithmetic number, because the mean of its divisors is an integer number (4110951544).

Almost surely, 2^8221903087 is an apocalyptic number.

8221903087 is a deficient number, since it is larger than the sum of its proper divisors (1).

8221903087 is an equidigital number, since it uses as much as digits as its factorization.

8221903087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 8221903087 is about 90674.7102945468. The cubic root of 8221903087 is about 2018.3235352642.

The spelling of 8221903087 in words is "eight billion, two hundred twenty-one million, nine hundred three thousand, eighty-seven".