71887036 has 48 divisors (see below), whose sum is σ = 139553568. Its totient is φ = 32198400.

The previous prime is 71887031. The next prime is 71887061. The reversal of 71887036 is 63078817.

It is a self number, because there is not a number n which added to its sum of digits gives 71887036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71887031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415446 + ... + 415618.

It is an arithmetic number, because the mean of its divisors is an integer number (2907366).

Almost surely, 2^71887036 is an apocalyptic number.

It is an amenable number.

71887036 is a deficient number, since it is larger than the sum of its proper divisors (67666532).

71887036 is a wasteful number, since it uses less digits than its factorization.

71887036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 71887036 is about 8478.6222937456. The cubic root of 71887036 is about 415.7990816626.

The spelling of 71887036 in words is "seventy-one million, eight hundred eighty-seven thousand, thirty-six".