71044813 has 8 divisors (see below), whose sum is σ = 81322560. Its totient is φ = 60799200.

The previous prime is 71044741. The next prime is 71044817. The reversal of 71044813 is 31844017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71044813 - 2¹³ = 71036621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71044817) 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 7 ways as a sum of consecutive naturals, for example, 3088 + ... + 12313.

It is an arithmetic number, because the mean of its divisors is an integer number (10165320).

Almost surely, 2^71044813 is an apocalyptic number.

It is an amenable number.

71044813 is a deficient number, since it is larger than the sum of its proper divisors (10277747).

71044813 is a wasteful number, since it uses less digits than its factorization.

71044813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16067.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 71044813 is about 8428.8085160359. The cubic root of 71044813 is about 414.1688751484.

The spelling of 71044813 in words is "seventy-one million, forty-four thousand, eight hundred thirteen".