2828247771 has 4 divisors (see below), whose sum is σ = 3770997032. Its totient is φ = 1885498512.

The previous prime is 2828247767. The next prime is 2828247791. The reversal of 2828247771 is 1777428282.

2828247771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2828247771 - 2² = 2828247767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2828247771.

It is not an unprimeable number, because it can be changed into a prime (2828247731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471374626 + ... + 471374631.

It is an arithmetic number, because the mean of its divisors is an integer number (942749258).

Almost surely, 2^2828247771 is an apocalyptic number.

2828247771 is a deficient number, since it is larger than the sum of its proper divisors (942749261).

2828247771 is an equidigital number, since it uses as much as digits as its factorization.

2828247771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942749260.

The product of its digits is 702464, while the sum is 48.

The square root of 2828247771 is about 53181.2727470865. The cubic root of 2828247771 is about 1414.1836694502.

The spelling of 2828247771 in words is "two billion, eight hundred twenty-eight million, two hundred forty-seven thousand, seven hundred seventy-one".