71040705 has 16 divisors (see below), whose sum is σ = 120351744. Its totient is φ = 35659520.

The previous prime is 71040701. The next prime is 71040707. The reversal of 71040705 is 50704017.

71040705 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 71040705 - 2² = 71040701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71040701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139041 + ... + 139550.

It is an arithmetic number, because the mean of its divisors is an integer number (7521984).

Almost surely, 2^71040705 is an apocalyptic number.

It is an amenable number.

71040705 is a deficient number, since it is larger than the sum of its proper divisors (49311039).

71040705 is a wasteful number, since it uses less digits than its factorization.

71040705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278616.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 71040705 is about 8428.5648244526. The cubic root of 71040705 is about 414.1608922127.

The spelling of 71040705 in words is "seventy-one million, forty thousand, seven hundred five".