71887020 has 48 divisors (see below), whose sum is σ = 201919200. Its totient is φ = 19109376.

The previous prime is 71887007. The next prime is 71887021. The reversal of 71887020 is 2078817.

It is not an unprimeable number, because it can be changed into a prime (71887021) by changing a digit.

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, 19224 + ... + 22656.

It is an arithmetic number, because the mean of its divisors is an integer number (4206650).

Almost surely, 2^71887020 is an apocalyptic number.

It is an amenable number.

71887020 is an abundant number, since it is smaller than the sum of its proper divisors (130032180).

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

71887020 is a wasteful number, since it uses less digits than its factorization.

71887020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794 (or 3792 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 71887020 is about 8478.6213501960. The cubic root of 71887020 is about 415.7990508143.

The spelling of 71887020 in words is "seventy-one million, eight hundred eighty-seven thousand, twenty".