2808328971 has 16 divisors (see below), whose sum is σ = 4395017984. Its totient is φ = 1561387104.

The previous prime is 2808328951. The next prime is 2808329009. The reversal of 2808328971 is 1798238082.

It is not a de Polignac number, because 2808328971 - 2¹⁰ = 2808327947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2808328971.

It is not an unprimeable number, because it can be changed into a prime (2808328951) 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 15 ways as a sum of consecutive naturals, for example, 1806385 + ... + 1807938.

It is an arithmetic number, because the mean of its divisors is an integer number (274688624).

Almost surely, 2^2808328971 is an apocalyptic number.

2808328971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2808328971 is a deficient number, since it is larger than the sum of its proper divisors (1586689013).

2808328971 is a wasteful number, since it uses less digits than its factorization.

2808328971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614370.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 2808328971 is about 52993.6691596270. The cubic root of 2808328971 is about 1410.8559045640.

The spelling of 2808328971 in words is "two billion, eight hundred eight million, three hundred twenty-eight thousand, nine hundred seventy-one".