71888916 has 24 divisors (see below), whose sum is σ = 182990304. Its totient is φ = 21784480.

The previous prime is 71888911. The next prime is 71888917. The reversal of 71888916 is 61988817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71888911) 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, 272175 + ... + 272438.

It is an arithmetic number, because the mean of its divisors is an integer number (7624596).

Almost surely, 2^71888916 is an apocalyptic number.

It is an amenable number.

71888916 is an abundant number, since it is smaller than the sum of its proper divisors (111101388).

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

71888916 is a wasteful number, since it uses less digits than its factorization.

71888916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544631 (or 544629 counting only the distinct ones).

The product of its digits is 193536, while the sum is 48.

The square root of 71888916 is about 8478.7331600894. The cubic root of 71888916 is about 415.8027063100.

Subtracting from 71888916 its reverse (61988817), we obtain a palindrome (9900099).

The spelling of 71888916 in words is "seventy-one million, eight hundred eighty-eight thousand, nine hundred sixteen".