83371638 has 64 divisors (see below), whose sum is σ = 205977600. Its totient is φ = 22409856.

The previous prime is 83371627. The next prime is 83371643. The reversal of 83371638 is 83617338.

It is a junction number, because it is equal to n+sod(n) for n = 83371596 and 83371605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33795 + ... + 36177.

It is an arithmetic number, because the mean of its divisors is an integer number (3218400).

Almost surely, 2^83371638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83371638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102988800).

83371638 is an abundant number, since it is smaller than the sum of its proper divisors (122605962).

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

83371638 is a wasteful number, since it uses less digits than its factorization.

83371638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426 (or 2412 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 83371638 is about 9130.8070837139. The cubic root of 83371638 is about 436.8571465337.

The spelling of 83371638 in words is "eighty-three million, three hundred seventy-one thousand, six hundred thirty-eight".