2805302987 has 2 divisors, whose sum is σ = 2805302988. Its totient is φ = 2805302986.

The previous prime is 2805302947. The next prime is 2805302989. The reversal of 2805302987 is 7892035082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2805302987 - 2²⁴ = 2788525771 is a prime.

It is a super-2 number, since 2×2805302987² = 15739449697742244338, which contains 22 as substring.

Together with 2805302989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2805302989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402651493 + 1402651494.

It is an arithmetic number, because the mean of its divisors is an integer number (1402651494).

Almost surely, 2^2805302987 is an apocalyptic number.

2805302987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805302987 is an equidigital number, since it uses as much as digits as its factorization.

2805302987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2805302987 is about 52965.1110354732. Note that the first 3 decimals coincide. The cubic root of 2805302987 is about 1410.3489884435.

The spelling of 2805302987 in words is "two billion, eight hundred five million, three hundred two thousand, nine hundred eighty-seven".