47216747 has 2 divisors, whose sum is σ = 47216748. Its totient is φ = 47216746.

The previous prime is 47216731. The next prime is 47216749. The reversal of 47216747 is 74761274.

47216747 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 is a cyclic number.

It is not a de Polignac number, because 47216747 - 2⁴ = 47216731 is a prime.

Together with 47216749, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 47216747.

It is not a weakly prime, because it can be changed into another prime (47216749) 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, 23608373 + 23608374.

It is an arithmetic number, because the mean of its divisors is an integer number (23608374).

Almost surely, 2^47216747 is an apocalyptic number.

47216747 is a deficient number, since it is larger than the sum of its proper divisors (1).

47216747 is an equidigital number, since it uses as much as digits as its factorization.

47216747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 38.

The square root of 47216747 is about 6871.4443168813. Note that the first 3 decimals coincide. The cubic root of 47216747 is about 361.4365107701.

The spelling of 47216747 in words is "forty-seven million, two hundred sixteen thousand, seven hundred forty-seven".