83216889 has 20 divisors (see below), whose sum is σ = 142071424. Its totient is φ = 47552184.

The previous prime is 83216873. The next prime is 83216891. The reversal of 83216889 is 98861238.

It is not a de Polignac number, because 83216889 - 2⁴ = 83216873 is a prime.

It is a super-2 number, since 2×83216889² = 13850101229676642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83216849) 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 19 ways as a sum of consecutive naturals, for example, 72817 + ... + 73950.

Almost surely, 2^83216889 is an apocalyptic number.

It is an amenable number.

83216889 is a deficient number, since it is larger than the sum of its proper divisors (58854535).

83216889 is a wasteful number, since it uses less digits than its factorization.

83216889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146786 (or 146777 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 83216889 is about 9122.3291433712. The cubic root of 83216889 is about 436.5866905439.

The spelling of 83216889 in words is "eighty-three million, two hundred sixteen thousand, eight hundred eighty-nine".