2821095947 has 2 divisors, whose sum is σ = 2821095948. Its totient is φ = 2821095946.

The previous prime is 2821095941. The next prime is 2821095961. The reversal of 2821095947 is 7495901282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2821095947 - 2¹² = 2821091851 is a prime.

It is not a weakly prime, because it can be changed into another prime (2821095941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410547973 + 1410547974.

It is an arithmetic number, because the mean of its divisors is an integer number (1410547974).

Almost surely, 2^2821095947 is an apocalyptic number.

2821095947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2821095947 is an equidigital number, since it uses as much as digits as its factorization.

2821095947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 2821095947 is about 53113.9901250132. The cubic root of 2821095947 is about 1412.9906422182.

The spelling of 2821095947 in words is "two billion, eight hundred twenty-one million, ninety-five thousand, nine hundred forty-seven".