83988036 has 72 divisors (see below), whose sum is σ = 239378720. Its totient is φ = 25446960.

The previous prime is 83988011. The next prime is 83988043. The reversal of 83988036 is 63088938.

It is a super-2 number, since 2×83988036² = 14107980382274592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83987982 and 83988000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9855 + ... + 16281.

Almost surely, 2^83988036 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 83988036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119689360).

83988036 is an abundant number, since it is smaller than the sum of its proper divisors (155390684).

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

83988036 is a wasteful number, since it uses less digits than its factorization.

83988036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462 (or 6443 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 83988036 is about 9164.4986769599. The cubic root of 83988036 is about 437.9311207131.

The spelling of 83988036 in words is "eighty-three million, nine hundred eighty-eight thousand, thirty-six".