71070471 has 6 divisors (see below), whose sum is σ = 102657360. Its totient is φ = 47380308.

The previous prime is 71070463. The next prime is 71070473. The reversal of 71070471 is 17407017.

It is not a de Polignac number, because 71070471 - 2³ = 71070463 is a prime.

It is a super-3 number, since 3×71070471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71070473) 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 5 ways as a sum of consecutive naturals, for example, 3948351 + ... + 3948368.

It is an arithmetic number, because the mean of its divisors is an integer number (17109560).

Almost surely, 2^71070471 is an apocalyptic number.

71070471 is a deficient number, since it is larger than the sum of its proper divisors (31586889).

71070471 is a wasteful number, since it uses less digits than its factorization.

71070471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7896725 (or 7896722 counting only the distinct ones).

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

The square root of 71070471 is about 8430.3304205707. The cubic root of 71070471 is about 414.2187284993.

Adding to 71070471 its reverse (17407017), we get a palindrome (88477488).

The spelling of 71070471 in words is "seventy-one million, seventy thousand, four hundred seventy-one".