71916534 has 48 divisors (see below), whose sum is σ = 159307200. Its totient is φ = 23442048.

The previous prime is 71916529. The next prime is 71916553. The reversal of 71916534 is 43561917.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300787 + ... + 301025.

It is an arithmetic number, because the mean of its divisors is an integer number (3318900).

Almost surely, 2^71916534 is an apocalyptic number.

71916534 is an abundant number, since it is smaller than the sum of its proper divisors (87390666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71916534 is a wasteful number, since it uses less digits than its factorization.

71916534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 546 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 71916534 is about 8480.3616668159. The cubic root of 71916534 is about 415.8559466402.

The spelling of 71916534 in words is "seventy-one million, nine hundred sixteen thousand, five hundred thirty-four".