47643047 has 2 divisors, whose sum is σ = 47643048. Its totient is φ = 47643046.

The previous prime is 47643041. The next prime is 47643103. The reversal of 47643047 is 74034674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47643047 - 2¹⁸ = 47380903 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 47642998 and 47643016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47643041) 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, 23821523 + 23821524.

It is an arithmetic number, because the mean of its divisors is an integer number (23821524).

Almost surely, 2^47643047 is an apocalyptic number.

47643047 is a deficient number, since it is larger than the sum of its proper divisors (1).

47643047 is an equidigital number, since it uses as much as digits as its factorization.

47643047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 47643047 is about 6902.3942947357. The cubic root of 47643047 is about 362.5210058378.

The spelling of 47643047 in words is "forty-seven million, six hundred forty-three thousand, forty-seven".