71939041 has 4 divisors (see below), whose sum is σ = 72035584. Its totient is φ = 71842500.

The previous prime is 71939017. The next prime is 71939047. The reversal of 71939041 is 14093917.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71939041 - 2¹¹ = 71936993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71938988 and 71939006.

It is not an unprimeable number, because it can be changed into a prime (71939047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47145 + ... + 48646.

It is an arithmetic number, because the mean of its divisors is an integer number (18008896).

Almost surely, 2^71939041 is an apocalyptic number.

It is an amenable number.

71939041 is a deficient number, since it is larger than the sum of its proper divisors (96543).

71939041 is an equidigital number, since it uses as much as digits as its factorization.

71939041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96542.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 71939041 is about 8481.6885700903. The cubic root of 71939041 is about 415.8993242106.

The spelling of 71939041 in words is "seventy-one million, nine hundred thirty-nine thousand, forty-one".