83271985 has 8 divisors (see below), whose sum is σ = 100192320. Its totient is φ = 66440304.

The previous prime is 83271977. The next prime is 83272051. The reversal of 83271985 is 58917238.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83271985 - 2³ = 83271977 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20077 + ... + 23866.

It is an arithmetic number, because the mean of its divisors is an integer number (12524040).

Almost surely, 2^83271985 is an apocalyptic number.

It is an amenable number.

83271985 is a deficient number, since it is larger than the sum of its proper divisors (16920335).

83271985 is a wasteful number, since it uses less digits than its factorization.

83271985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44327.

The product of its digits is 120960, while the sum is 43.

The square root of 83271985 is about 9125.3484864963. The cubic root of 83271985 is about 436.6830206437.

The spelling of 83271985 in words is "eighty-three million, two hundred seventy-one thousand, nine hundred eighty-five".