71850 has 24 divisors (see below), whose sum is σ = 178560. Its totient is φ = 19120.

The previous prime is 71849. The next prime is 71861. The reversal of 71850 is 5817.

It is a happy number.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90 + ... + 389.

It is an arithmetic number, because the mean of its divisors is an integer number (7440).

2⁷¹⁸⁵⁰ is an apocalyptic number.

71850 is an abundant number, since it is smaller than the sum of its proper divisors (106710).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89280).

71850 is a wasteful number, since it uses less digits than its factorization.

71850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 71850 is about 268.0485030736. The cubic root of 71850 is about 41.5727663222.

The spelling of 71850 in words is "seventy-one thousand, eight hundred fifty".