47845949 has 2 divisors, whose sum is σ = 47845950. Its totient is φ = 47845948.

The previous prime is 47845943. The next prime is 47845979. The reversal of 47845949 is 94954874.

47845949 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., 31158724 + 16687225 = 5582^2 + 4085^2 .

It is a cyclic number.

It is not a de Polignac number, because 47845949 - 2¹² = 47841853 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 47845897 and 47845906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47845943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23922974 + 23922975.

It is an arithmetic number, because the mean of its divisors is an integer number (23922975).

Almost surely, 2^47845949 is an apocalyptic number.

It is an amenable number.

47845949 is a deficient number, since it is larger than the sum of its proper divisors (1).

47845949 is an equidigital number, since it uses as much as digits as its factorization.

47845949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 47845949 is about 6917.0766223890. The cubic root of 47845949 is about 363.0349112783.

The spelling of 47845949 in words is "forty-seven million, eight hundred forty-five thousand, nine hundred forty-nine".