71871092 has 12 divisors (see below), whose sum is σ = 125888196. Its totient is φ = 35903040.

The previous prime is 71871071. The next prime is 71871169. The reversal of 71871092 is 29017817.

It can be written as a sum of positive squares in 2 ways, for example, as 46730896 + 25140196 = 6836^2 + 5014^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2759 + ... + 12302.

It is an arithmetic number, because the mean of its divisors is an integer number (10490683).

Almost surely, 2^71871092 is an apocalyptic number.

It is an amenable number.

71871092 is a deficient number, since it is larger than the sum of its proper divisors (54017104).

71871092 is a wasteful number, since it uses less digits than its factorization.

71871092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258 (or 16256 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 71871092 is about 8477.6819945077. The cubic root of 71871092 is about 415.7683390276.

The spelling of 71871092 in words is "seventy-one million, eight hundred seventy-one thousand, ninety-two".