71471288 has 32 divisors (see below), whose sum is σ = 154652160. Its totient is φ = 30330720.

The previous prime is 71471287. The next prime is 71471303. The reversal of 71471288 is 88217417.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71471287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428 + ... + 11963.

It is an arithmetic number, because the mean of its divisors is an integer number (4832880).

Almost surely, 2^71471288 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 71471288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77326080).

71471288 is an abundant number, since it is smaller than the sum of its proper divisors (83180872).

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

71471288 is a wasteful number, since it uses less digits than its factorization.

71471288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12507 (or 12503 counting only the distinct ones).

The product of its digits is 25088, while the sum is 38.

The square root of 71471288 is about 8454.0693160158. The cubic root of 71471288 is about 414.9959606710.

The spelling of 71471288 in words is "seventy-one million, four hundred seventy-one thousand, two hundred eighty-eight".