2987663281 has 2 divisors, whose sum is σ = 2987663282. Its totient is φ = 2987663280.

The previous prime is 2987663251. The next prime is 2987663321. The reversal of 2987663281 is 1823667892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2819079025 + 168584256 = 53095^2 + 12984^2 .

It is a cyclic number.

It is not a de Polignac number, because 2987663281 - 2¹⁷ = 2987532209 is a prime.

It is a super-2 number, since 2×2987663281² = 17852263761271369922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2987663221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493831640 + 1493831641.

It is an arithmetic number, because the mean of its divisors is an integer number (1493831641).

Almost surely, 2^2987663281 is an apocalyptic number.

It is an amenable number.

2987663281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987663281 is an equidigital number, since it uses as much as digits as its factorization.

2987663281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The square root of 2987663281 is about 54659.5214121017. The cubic root of 2987663281 is about 1440.2698955594.

The spelling of 2987663281 in words is "two billion, nine hundred eighty-seven million, six hundred sixty-three thousand, two hundred eighty-one".