71011672 has 32 divisors (see below), whose sum is σ = 142339680. Its totient is φ = 33130240.

The previous prime is 71011667. The next prime is 71011687. The reversal of 71011672 is 27611017.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2838 + ... + 12250.

It is an arithmetic number, because the mean of its divisors is an integer number (4448115).

Almost surely, 2^71011672 is an apocalyptic number.

It is an amenable number.

71011672 is an abundant number, since it is smaller than the sum of its proper divisors (71328008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71011672 is a wasteful number, since it uses less digits than its factorization.

71011672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9483 (or 9479 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 71011672 is about 8426.8423504893. The cubic root of 71011672 is about 414.1044646026.

Adding to 71011672 its reverse (27611017), we get a palindrome (98622689).

The spelling of 71011672 in words is "seventy-one million, eleven thousand, six hundred seventy-two".