47809673 has 2 divisors, whose sum is σ = 47809674. Its totient is φ = 47809672.

The previous prime is 47809631. The next prime is 47809687. The reversal of 47809673 is 37690874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26759929 + 21049744 = 5173^2 + 4588^2 .

It is a cyclic number.

It is not a de Polignac number, because 47809673 - 2⁶ = 47809609 is a prime.

It is not a weakly prime, because it can be changed into another prime (47809273) 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, 23904836 + 23904837.

It is an arithmetic number, because the mean of its divisors is an integer number (23904837).

Almost surely, 2^47809673 is an apocalyptic number.

It is an amenable number.

47809673 is a deficient number, since it is larger than the sum of its proper divisors (1).

47809673 is an equidigital number, since it uses as much as digits as its factorization.

47809673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 47809673 is about 6914.4539191465. The cubic root of 47809673 is about 362.9431390774.

The spelling of 47809673 in words is "forty-seven million, eight hundred nine thousand, six hundred seventy-three".