71107047 has 24 divisors (see below), whose sum is σ = 112514688. Its totient is φ = 42915600.

The previous prime is 71107021. The next prime is 71107051. The reversal of 71107047 is 74070117.

It is not a de Polignac number, because 71107047 - 2¹⁸ = 70844903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71107047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71107147) 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 23 ways as a sum of consecutive naturals, for example, 24672 + ... + 27402.

It is an arithmetic number, because the mean of its divisors is an integer number (4688112).

Almost surely, 2^71107047 is an apocalyptic number.

71107047 is a deficient number, since it is larger than the sum of its proper divisors (41407641).

71107047 is a wasteful number, since it uses less digits than its factorization.

71107047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 71107047 is about 8432.4994515268. The cubic root of 71107047 is about 414.2897747238.

It can be divided in two parts, 711070 and 47, that added together give a palindrome (711117).

The spelling of 71107047 in words is "seventy-one million, one hundred seven thousand, forty-seven".