47914861 has 2 divisors, whose sum is σ = 47914862. Its totient is φ = 47914860.

The previous prime is 47914859. The next prime is 47914901. The reversal of 47914861 is 16841974.

It is an a-pointer prime, because the next prime (47914901) can be obtained adding 47914861 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46498761 + 1416100 = 6819^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 47914861 - 2¹ = 47914859 is a prime.

Together with 47914859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47914661) 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, 23957430 + 23957431.

It is an arithmetic number, because the mean of its divisors is an integer number (23957431).

Almost surely, 2^47914861 is an apocalyptic number.

It is an amenable number.

47914861 is a deficient number, since it is larger than the sum of its proper divisors (1).

47914861 is an equidigital number, since it uses as much as digits as its factorization.

47914861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 47914861 is about 6922.0561251697. The cubic root of 47914861 is about 363.2091194132.

The spelling of 47914861 in words is "forty-seven million, nine hundred fourteen thousand, eight hundred sixty-one".