71047532 has 6 divisors (see below), whose sum is σ = 124333188. Its totient is φ = 35523764.

The previous prime is 71047531. The next prime is 71047549. The reversal of 71047532 is 23574017.

It is a junction number, because it is equal to n+sod(n) for n = 71047495 and 71047504.

It is not an unprimeable number, because it can be changed into a prime (71047531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8880938 + ... + 8880945.

It is an arithmetic number, because the mean of its divisors is an integer number (20722198).

Almost surely, 2^71047532 is an apocalyptic number.

It is an amenable number.

71047532 is a deficient number, since it is larger than the sum of its proper divisors (53285656).

71047532 is a wasteful number, since it uses less digits than its factorization.

71047532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17761887 (or 17761885 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 71047532 is about 8428.9698065659. The cubic root of 71047532 is about 414.1741587188.

The spelling of 71047532 in words is "seventy-one million, forty-seven thousand, five hundred thirty-two".