83471728 has 20 divisors (see below), whose sum is σ = 162570448. Its totient is φ = 41518080.

The previous prime is 83471723. The next prime is 83471797. The reversal of 83471728 is 82717438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83471723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10428 + ... + 16603.

Almost surely, 2^83471728 is an apocalyptic number.

It is an amenable number.

83471728 is a deficient number, since it is larger than the sum of its proper divisors (79098720).

83471728 is a wasteful number, since it uses less digits than its factorization.

83471728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27232 (or 27226 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 83471728 is about 9136.2863352677. The cubic root of 83471728 is about 437.0318963919.

The spelling of 83471728 in words is "eighty-three million, four hundred seventy-one thousand, seven hundred twenty-eight".