83471091 has 16 divisors (see below), whose sum is σ = 122193408. Its totient is φ = 50263200.

The previous prime is 83471083. The next prime is 83471093. The reversal of 83471091 is 19017438.

It is not a de Polignac number, because 83471091 - 2³ = 83471083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (83471093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2875 + ... + 13236.

It is an arithmetic number, because the mean of its divisors is an integer number (7637088).

Almost surely, 2^83471091 is an apocalyptic number.

83471091 is a deficient number, since it is larger than the sum of its proper divisors (38722317).

83471091 is a wasteful number, since it uses less digits than its factorization.

83471091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16282.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 83471091 is about 9136.2514742098. The cubic root of 83471091 is about 437.0307846780.

It can be divided in two parts, 83 and 471091, that added together give a palindrome (471174).

The spelling of 83471091 in words is "eighty-three million, four hundred seventy-one thousand, ninety-one".