71683 has 4 divisors (see below), whose sum is σ = 72520. Its totient is φ = 70848.

The previous prime is 71671. The next prime is 71693. The reversal of 71683 is 38617.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71683 - 2⁹ = 71171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273 + ... + 466.

It is an arithmetic number, because the mean of its divisors is an integer number (18130).

2⁷¹⁶⁸³ is an apocalyptic number.

71683 is a deficient number, since it is larger than the sum of its proper divisors (837).

71683 is an equidigital number, since it uses as much as digits as its factorization.

71683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its digits is 1008, while the sum is 25.

The square root of 71683 is about 267.7368110664. The cubic root of 71683 is about 41.5405323262.

It can be divided in two parts, 7 and 1683, that multiplied together give a triangular number (11781 = T₁₅₃).

The spelling of 71683 in words is "seventy-one thousand, six hundred eighty-three".