83043990 has 48 divisors (see below), whose sum is σ = 218535408. Its totient is φ = 21876288.

The previous prime is 83043977. The next prime is 83044019. The reversal of 83043990 is 9934038.

It is a congruent number.

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, 1912 + ... + 13028.

It is an arithmetic number, because the mean of its divisors is an integer number (4552821).

Almost surely, 2^83043990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83043990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109267704).

83043990 is an abundant number, since it is smaller than the sum of its proper divisors (135491418).

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

83043990 is a wasteful number, since it uses less digits than its factorization.

83043990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11213 (or 11210 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 83043990 is about 9112.8475242374. The cubic root of 83043990 is about 436.2841167835.

The spelling of 83043990 in words is "eighty-three million, forty-three thousand, nine hundred ninety".