83928171 has 4 divisors (see below), whose sum is σ = 111904232. Its totient is φ = 55952112.

The previous prime is 83928139. The next prime is 83928181. The reversal of 83928171 is 17182938.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 83928171 - 2⁵ = 83928139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83928101) 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, 13988026 + ... + 13988031.

It is an arithmetic number, because the mean of its divisors is an integer number (27976058).

Almost surely, 2^83928171 is an apocalyptic number.

83928171 is a deficient number, since it is larger than the sum of its proper divisors (27976061).

83928171 is a wasteful number, since it uses less digits than its factorization.

83928171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27976060.

The product of its digits is 24192, while the sum is 39.

The square root of 83928171 is about 9161.2319586396. The cubic root of 83928171 is about 437.8270464537.

The spelling of 83928171 in words is "eighty-three million, nine hundred twenty-eight thousand, one hundred seventy-one".