82789616 has 60 divisors (see below), whose sum is σ = 200971512. Its totient is φ = 32747904.

The previous prime is 82789613. The next prime is 82789633. The reversal of 82789616 is 61698728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82789613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6131 + ... + 14253.

Almost surely, 2^82789616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82789616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100485756).

82789616 is an abundant number, since it is smaller than the sum of its proper divisors (118181896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82789616 is a wasteful number, since it uses less digits than its factorization.

82789616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8158 (or 8145 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 82789616 is about 9098.8799310684. The cubic root of 82789616 is about 435.8381971225.

The spelling of 82789616 in words is "eighty-two million, seven hundred eighty-nine thousand, six hundred sixteen".