83404816 has 60 divisors (see below), whose sum is σ = 180554416. Its totient is φ = 37287360.

The previous prime is 83404801. The next prime is 83404829. The reversal of 83404816 is 61840438.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129391 + ... + 130033.

Almost surely, 2^83404816 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 83404816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90277208).

83404816 is an abundant number, since it is smaller than the sum of its proper divisors (97149600).

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

83404816 is a wasteful number, since it uses less digits than its factorization.

83404816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 83404816 is about 9132.6237193919. The cubic root of 83404816 is about 436.9150883971.

The spelling of 83404816 in words is "eighty-three million, four hundred four thousand, eight hundred sixteen".