83911616 has 42 divisors (see below), whose sum is σ = 172562520. Its totient is φ = 40483072.

The previous prime is 83911577. The next prime is 83911631. The reversal of 83911616 is 61611938.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53045 + ... + 54603.

Almost surely, 2^83911616 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 83911616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86281260).

83911616 is an abundant number, since it is smaller than the sum of its proper divisors (88650904).

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

83911616 is a wasteful number, since it uses less digits than its factorization.

83911616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629 (or 1590 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 83911616 is about 9160.3283783934. The cubic root of 83911616 is about 437.7982571398.

The spelling of 83911616 in words is "eighty-three million, nine hundred eleven thousand, six hundred sixteen".