2827648969 has 4 divisors (see below), whose sum is σ = 2828099860. Its totient is φ = 2827198080.

The previous prime is 2827648949. The next prime is 2827648987. The reversal of 2827648969 is 9698467282.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1932921225 + 894727744 = 43965^2 + 29912^2 .

It is a cyclic number.

It is not a de Polignac number, because 2827648969 - 2⁵ = 2827648937 is a prime.

It is a super-2 number, since 2×2827648969² = 15991197383773525922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2827648949) 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 3 ways as a sum of consecutive naturals, for example, 215904 + ... + 228625.

It is an arithmetic number, because the mean of its divisors is an integer number (707024965).

Almost surely, 2^2827648969 is an apocalyptic number.

It is an amenable number.

2827648969 is a deficient number, since it is larger than the sum of its proper divisors (450891).

2827648969 is an equidigital number, since it uses as much as digits as its factorization.

2827648969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450890.

The product of its digits is 20901888, while the sum is 61.

The square root of 2827648969 is about 53175.6426289330. The cubic root of 2827648969 is about 1414.0838578533.

The spelling of 2827648969 in words is "two billion, eight hundred twenty-seven million, six hundred forty-eight thousand, nine hundred sixty-nine".