71043413 has 16 divisors (see below), whose sum is σ = 88227840. Its totient is φ = 55825200.

The previous prime is 71043409. The next prime is 71043433. The reversal of 71043413 is 31434017.

It is a cyclic number.

It is not a de Polignac number, because 71043413 - 2² = 71043409 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 (71043403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4493 + ... + 12738.

It is an arithmetic number, because the mean of its divisors is an integer number (5514240).

Almost surely, 2^71043413 is an apocalyptic number.

It is an amenable number.

71043413 is a deficient number, since it is larger than the sum of its proper divisors (17184427).

71043413 is a wasteful number, since it uses less digits than its factorization.

71043413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17288.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 71043413 is about 8428.7254671154. The cubic root of 71043413 is about 414.1661546109.

The spelling of 71043413 in words is "seventy-one million, forty-three thousand, four hundred thirteen".