71169472 has 56 divisors (see below), whose sum is σ = 157715712. Its totient is φ = 31584000.

The previous prime is 71169467. The next prime is 71169491. The reversal of 71169472 is 27496117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29097 + ... + 31447.

It is an arithmetic number, because the mean of its divisors is an integer number (2816352).

Almost surely, 2^71169472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71169472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78857856).

71169472 is an abundant number, since it is smaller than the sum of its proper divisors (86546240).

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

71169472 is a wasteful number, since it uses less digits than its factorization.

71169472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417 (or 2407 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The square root of 71169472 is about 8436.2000924587. The cubic root of 71169472 is about 414.4109745010.

The spelling of 71169472 in words is "seventy-one million, one hundred sixty-nine thousand, four hundred seventy-two".