2808634937 has 12 divisors (see below), whose sum is σ = 2928893220. Its totient is φ = 2692997280.

The previous prime is 2808634909. The next prime is 2808634943. The reversal of 2808634937 is 7394368082.

It can be written as a sum of positive squares in 2 ways, for example, as 2023290361 + 785344576 = 44981^2 + 28024^2 .

It is not a de Polignac number, because 2808634937 - 2⁸ = 2808634681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2808634987) 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 in 11 ways as a sum of consecutive naturals, for example, 91343 + ... + 118155.

It is an arithmetic number, because the mean of its divisors is an integer number (244074435).

Almost surely, 2^2808634937 is an apocalyptic number.

It is an amenable number.

2808634937 is a deficient number, since it is larger than the sum of its proper divisors (120258283).

2808634937 is a wasteful number, since it uses less digits than its factorization.

2808634937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26984 (or 26953 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The square root of 2808634937 is about 52996.5558975298. Note that the first 3 decimals coincide. The cubic root of 2808634937 is about 1410.9071400455.

The spelling of 2808634937 in words is "two billion, eight hundred eight million, six hundred thirty-four thousand, nine hundred thirty-seven".