2828720497 has 2 divisors, whose sum is σ = 2828720498. Its totient is φ = 2828720496.

The previous prime is 2828720467. The next prime is 2828720533. The reversal of 2828720497 is 7940278282.

2828720497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2039335281 + 789385216 = 45159^2 + 28096^2 .

It is a cyclic number.

It is not a de Polignac number, because 2828720497 - 2¹¹ = 2828718449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2828720497.

It is not a weakly prime, because it can be changed into another prime (2828720417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1414360248 + 1414360249.

It is an arithmetic number, because the mean of its divisors is an integer number (1414360249).

Almost surely, 2^2828720497 is an apocalyptic number.

It is an amenable number.

2828720497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2828720497 is an equidigital number, since it uses as much as digits as its factorization.

2828720497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 2828720497 is about 53185.7170394458. The cubic root of 2828720497 is about 1414.2624560583.

It can be divided in two parts, 28287 and 20497, that added together give a palindrome (48784).

The spelling of 2828720497 in words is "two billion, eight hundred twenty-eight million, seven hundred twenty thousand, four hundred ninety-seven".