2887221563 has 2 divisors, whose sum is σ = 2887221564. Its totient is φ = 2887221562.

The previous prime is 2887221497. The next prime is 2887221583. The reversal of 2887221563 is 3651227882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2887221563 - 2⁸ = 2887221307 is a prime.

It is not a weakly prime, because it can be changed into another prime (2887221583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443610781 + 1443610782.

It is an arithmetic number, because the mean of its divisors is an integer number (1443610782).

Almost surely, 2^2887221563 is an apocalyptic number.

2887221563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2887221563 is an equidigital number, since it uses as much as digits as its factorization.

2887221563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 44.

The square root of 2887221563 is about 53732.8722757308. The cubic root of 2887221563 is about 1423.9455111275.

The spelling of 2887221563 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-one thousand, five hundred sixty-three".