71816888 has 72 divisors (see below), whose sum is σ = 160637400. Its totient is φ = 30064320.

The previous prime is 71816887. The next prime is 71816909. The reversal of 71816888 is 88861817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71816881) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 163373 + ... + 163811.

It is an arithmetic number, because the mean of its divisors is an integer number (2231075).

Almost surely, 2^71816888 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 71816888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80318700).

71816888 is an abundant number, since it is smaller than the sum of its proper divisors (88820512).

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

71816888 is a wasteful number, since it uses less digits than its factorization.

71816888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 465 counting only the distinct ones).

The product of its digits is 172032, while the sum is 47.

The square root of 71816888 is about 8474.4845270966. The cubic root of 71816888 is about 415.6637908506.

The spelling of 71816888 in words is "seventy-one million, eight hundred sixteen thousand, eight hundred eighty-eight".