71860 has 12 divisors (see below), whose sum is σ = 150948. Its totient is φ = 28736.

The previous prime is 71849. The next prime is 71861. The reversal of 71860 is 6817.

It can be written as a sum of positive squares in 2 ways, for example, as 24336 + 47524 = 156^2 + 218^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1777 + ... + 1816.

It is an arithmetic number, because the mean of its divisors is an integer number (12579).

2⁷¹⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

71860 is an abundant number, since it is smaller than the sum of its proper divisors (79088).

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 (75474).

71860 is a wasteful number, since it uses less digits than its factorization.

71860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3600 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 71860 is about 268.0671557651. The cubic root of 71860 is about 41.5746949159.

The spelling of 71860 in words is "seventy-one thousand, eight hundred sixty".