8281949287 has 2 divisors, whose sum is σ = 8281949288. Its totient is φ = 8281949286.

The previous prime is 8281949257. The next prime is 8281949303. The reversal of 8281949287 is 7829491828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8281949287 - 2³¹ = 6134465639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8281949237) 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, 4140974643 + 4140974644.

It is an arithmetic number, because the mean of its divisors is an integer number (4140974644).

Almost surely, 2^8281949287 is an apocalyptic number.

8281949287 is a deficient number, since it is larger than the sum of its proper divisors (1).

8281949287 is an equidigital number, since it uses as much as digits as its factorization.

8281949287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 58.

The square root of 8281949287 is about 91005.2157131667. The cubic root of 8281949287 is about 2023.2250289626.

The spelling of 8281949287 in words is "eight billion, two hundred eighty-one million, nine hundred forty-nine thousand, two hundred eighty-seven".