71743216 has 20 divisors (see below), whose sum is σ = 143796600. Its totient is φ = 34634432.

The previous prime is 71743211. The next prime is 71743219. The reversal of 71743216 is 61234717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71743211) 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 3 ways as a sum of consecutive naturals, for example, 76846 + ... + 77773.

It is an arithmetic number, because the mean of its divisors is an integer number (7189830).

Almost surely, 2^71743216 is an apocalyptic number.

It is an amenable number.

71743216 is an abundant number, since it is smaller than the sum of its proper divisors (72053384).

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

71743216 is a wasteful number, since it uses less digits than its factorization.

71743216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154656 (or 154650 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 71743216 is about 8470.1367167242. The cubic root of 71743216 is about 415.5216086012.

The spelling of 71743216 in words is "seventy-one million, seven hundred forty-three thousand, two hundred sixteen".