71788 has 12 divisors (see below), whose sum is σ = 127512. Its totient is φ = 35360.

The previous prime is 71777. The next prime is 71789. The reversal of 71788 is 88717.

It is not an unprimeable number, because it can be changed into a prime (71789) 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, 456 + ... + 592.

It is an arithmetic number, because the mean of its divisors is an integer number (10626).

2⁷¹⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

71788 is a deficient number, since it is larger than the sum of its proper divisors (55724).

71788 is a wasteful number, since it uses less digits than its factorization.

71788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 270 counting only the distinct ones).

The product of its digits is 3136, while the sum is 31.

The square root of 71788 is about 267.9328274027. The cubic root of 71788 is about 41.5608050452.

The spelling of 71788 in words is "seventy-one thousand, seven hundred eighty-eight".