47271705 has 16 divisors (see below), whose sum is σ = 81453120. Its totient is φ = 23272128.

The previous prime is 47271703. The next prime is 47271709. The reversal of 47271705 is 50717274.

It is a happy number.

47271705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47271705 - 2¹ = 47271703 is a prime.

It is a super-2 number, since 2×47271705² = 4469228187214050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47271703) 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 in 15 ways as a sum of consecutive naturals, for example, 121015 + ... + 121404.

It is an arithmetic number, because the mean of its divisors is an integer number (5090820).

Almost surely, 2^47271705 is an apocalyptic number.

It is an amenable number.

47271705 is a deficient number, since it is larger than the sum of its proper divisors (34181415).

47271705 is a wasteful number, since it uses less digits than its factorization.

47271705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242440.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 47271705 is about 6875.4421675991. The cubic root of 47271705 is about 361.5766879117.

Adding to 47271705 its reverse (50717274), we get a palindrome (97988979).

The spelling of 47271705 in words is "forty-seven million, two hundred seventy-one thousand, seven hundred five".