2987262809 has 2 divisors, whose sum is σ = 2987262810. Its totient is φ = 2987262808.

The previous prime is 2987262779. The next prime is 2987262841. The reversal of 2987262809 is 9082627892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2156209225 + 831053584 = 46435^2 + 28828^2 .

It is a cyclic number.

It is not a de Polignac number, because 2987262809 - 2¹² = 2987258713 is a prime.

It is not a weakly prime, because it can be changed into another prime (2987222809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493631404 + 1493631405.

It is an arithmetic number, because the mean of its divisors is an integer number (1493631405).

Almost surely, 2^2987262809 is an apocalyptic number.

It is an amenable number.

2987262809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987262809 is an equidigital number, since it uses as much as digits as its factorization.

2987262809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 2987262809 is about 54655.8579568558. The cubic root of 2987262809 is about 1440.2055405229.

The spelling of 2987262809 in words is "two billion, nine hundred eighty-seven million, two hundred sixty-two thousand, eight hundred nine".