47071047 has 4 divisors (see below), whose sum is σ = 62761400. Its totient is φ = 31380696.

The previous prime is 47071027. The next prime is 47071091. The reversal of 47071047 is 74017074.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47071047 - 2⁸ = 47070791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47071007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7845172 + ... + 7845177.

It is an arithmetic number, because the mean of its divisors is an integer number (15690350).

Almost surely, 2^47071047 is an apocalyptic number.

47071047 is a deficient number, since it is larger than the sum of its proper divisors (15690353).

47071047 is a wasteful number, since it uses less digits than its factorization.

47071047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15690352.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 47071047 is about 6860.8342787157. The cubic root of 47071047 is about 361.0643577884.

It can be divided in two parts, 470 and 71047, that added together give a palindrome (71517).

The spelling of 47071047 in words is "forty-seven million, seventy-one thousand, forty-seven".