947440049 has 2 divisors, whose sum is σ = 947440050. Its totient is φ = 947440048.

The previous prime is 947440037. The next prime is 947440051. The reversal of 947440049 is 940044749.

947440049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 913973824 + 33466225 = 30232^2 + 5785^2 .

It is a cyclic number.

It is not a de Polignac number, because 947440049 - 2⁴ = 947440033 is a prime.

Together with 947440051, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 947439988 and 947440015.

It is not a weakly prime, because it can be changed into another prime (947400049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473720024 + 473720025.

It is an arithmetic number, because the mean of its divisors is an integer number (473720025).

Almost surely, 2^947440049 is an apocalyptic number.

It is an amenable number.

947440049 is a deficient number, since it is larger than the sum of its proper divisors (1).

947440049 is an equidigital number, since it uses as much as digits as its factorization.

947440049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 947440049 is about 30780.5141120157. The cubic root of 947440049 is about 982.1637768964.

The spelling of 947440049 in words is "nine hundred forty-seven million, four hundred forty thousand, forty-nine".