47667947 has 2 divisors, whose sum is σ = 47667948. Its totient is φ = 47667946.

The previous prime is 47667943. The next prime is 47668007. The reversal of 47667947 is 74976674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47667947 - 2² = 47667943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47667895 and 47667904.

It is not a weakly prime, because it can be changed into another prime (47667943) 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 as a sum of consecutive naturals, namely, 23833973 + 23833974.

It is an arithmetic number, because the mean of its divisors is an integer number (23833974).

Almost surely, 2^47667947 is an apocalyptic number.

47667947 is a deficient number, since it is larger than the sum of its proper divisors (1).

47667947 is an equidigital number, since it uses as much as digits as its factorization.

47667947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 50.

The square root of 47667947 is about 6904.1977810604. The cubic root of 47667947 is about 362.5841504203.

The spelling of 47667947 in words is "forty-seven million, six hundred sixty-seven thousand, nine hundred forty-seven".