83816589 has 16 divisors (see below), whose sum is σ = 114661184. Its totient is φ = 54432000.

The previous prime is 83816573. The next prime is 83816609. The reversal of 83816589 is 98561838.

It is not a de Polignac number, because 83816589 - 2⁴ = 83816573 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83816539) 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, 69189 + ... + 70389.

It is an arithmetic number, because the mean of its divisors is an integer number (7166324).

Almost surely, 2^83816589 is an apocalyptic number.

It is an amenable number.

83816589 is a deficient number, since it is larger than the sum of its proper divisors (30844595).

83816589 is a wasteful number, since it uses less digits than its factorization.

83816589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788.

The product of its digits is 414720, while the sum is 48.

The square root of 83816589 is about 9155.1400316980. The cubic root of 83816589 is about 437.6329309256.

The spelling of 83816589 in words is "eighty-three million, eight hundred sixteen thousand, five hundred eighty-nine".