71040885 has 16 divisors (see below), whose sum is σ = 113796096. Its totient is φ = 37844928.

The previous prime is 71040883. The next prime is 71040911. The reversal of 71040885 is 58804017.

It is a happy number.

It is not a de Polignac number, because 71040885 - 2¹ = 71040883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71040881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14127 + ... + 18483.

It is an arithmetic number, because the mean of its divisors is an integer number (7112256).

Almost surely, 2^71040885 is an apocalyptic number.

It is an amenable number.

71040885 is a deficient number, since it is larger than the sum of its proper divisors (42755211).

71040885 is a wasteful number, since it uses less digits than its factorization.

71040885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 71040885 is about 8428.5755024203. The cubic root of 71040885 is about 414.1612420069.

The spelling of 71040885 in words is "seventy-one million, forty thousand, eight hundred eighty-five".