71986041 has 24 divisors (see below), whose sum is σ = 115895520. Its totient is φ = 42788736.

The previous prime is 71986027. The next prime is 71986043. The reversal of 71986041 is 14068917.

It is not a de Polignac number, because 71986041 - 2¹⁴ = 71969657 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71985987 and 71986005.

It is not an unprimeable number, because it can be changed into a prime (71986043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9475 + ... + 15288.

It is an arithmetic number, because the mean of its divisors is an integer number (4828980).

Almost surely, 2^71986041 is an apocalyptic number.

It is an amenable number.

71986041 is a deficient number, since it is larger than the sum of its proper divisors (43909479).

71986041 is a wasteful number, since it uses less digits than its factorization.

71986041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24805 (or 24802 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 71986041 is about 8484.4587924039. The cubic root of 71986041 is about 415.9898777893.

The spelling of 71986041 in words is "seventy-one million, nine hundred eighty-six thousand, forty-one".