71750 has 32 divisors (see below), whose sum is σ = 157248. Its totient is φ = 24000.

The previous prime is 71741. The next prime is 71761. The reversal of 71750 is 5717.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1730 + ... + 1770.

It is an arithmetic number, because the mean of its divisors is an integer number (4914).

2⁷¹⁷⁵⁰ is an apocalyptic number.

71750 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71750 is an abundant number, since it is smaller than the sum of its proper divisors (85498).

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 (78624).

71750 is a wasteful number, since it uses less digits than its factorization.

71750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 245, while the sum is 20.

The square root of 71750 is about 267.8619047196. The cubic root of 71750 is about 41.5534705355.

It can be divided in two parts, 717 and 50, that added together give a palindrome (767).

The spelling of 71750 in words is "seventy-one thousand, seven hundred fifty".