47715887 has 2 divisors, whose sum is σ = 47715888. Its totient is φ = 47715886.

The previous prime is 47715881. The next prime is 47715893. The reversal of 47715887 is 78851774.

47715887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (47715881) and next prime (47715893).

It is a cyclic number.

It is not a de Polignac number, because 47715887 - 2¹⁴ = 47699503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47715881) 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, 23857943 + 23857944.

It is an arithmetic number, because the mean of its divisors is an integer number (23857944).

Almost surely, 2^47715887 is an apocalyptic number.

47715887 is a deficient number, since it is larger than the sum of its proper divisors (1).

47715887 is an equidigital number, since it uses as much as digits as its factorization.

47715887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 439040, while the sum is 47.

The square root of 47715887 is about 6907.6687094851. The cubic root of 47715887 is about 362.7056608646.

The spelling of 47715887 in words is "forty-seven million, seven hundred fifteen thousand, eight hundred eighty-seven".