71887088 has 80 divisors (see below), whose sum is σ = 173530560. Its totient is φ = 28090368.

The previous prime is 71887069. The next prime is 71887091. The reversal of 71887088 is 88078817.

It is a super-2 number, since 2×71887088² = 10335506842239488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140978 + ... + 141486.

It is an arithmetic number, because the mean of its divisors is an integer number (2169132).

Almost surely, 2^71887088 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 71887088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86765280).

71887088 is an abundant number, since it is smaller than the sum of its proper divisors (101643472).

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

71887088 is a wasteful number, since it uses less digits than its factorization.

71887088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 47.

The square root of 71887088 is about 8478.6253602810. The cubic root of 71887088 is about 415.7991819197.

The spelling of 71887088 in words is "seventy-one million, eight hundred eighty-seven thousand, eighty-eight".