83168491 has 16 divisors (see below), whose sum is σ = 103507200. Its totient is φ = 65203488.

The previous prime is 83168473. The next prime is 83168531. The reversal of 83168491 is 19486138.

It is not a de Polignac number, because 83168491 - 2¹³ = 83160299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83168411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6925 + ... + 14638.

It is an arithmetic number, because the mean of its divisors is an integer number (6469200).

Almost surely, 2^83168491 is an apocalyptic number.

83168491 is a deficient number, since it is larger than the sum of its proper divisors (20338709).

83168491 is a wasteful number, since it uses less digits than its factorization.

83168491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21618.

The product of its digits is 41472, while the sum is 40.

The square root of 83168491 is about 9119.6760359127. The cubic root of 83168491 is about 436.5020361725.

It can be divided in two parts, 8316 and 8491, that added together give a 5-th power (16807 = 7⁵).

The spelling of 83168491 in words is "eighty-three million, one hundred sixty-eight thousand, four hundred ninety-one".