83889000 has 256 divisors, whose sum is σ = 314496000. Its totient is φ = 20563200.

The previous prime is 83888989. The next prime is 83889019. The reversal of 83889000 is 98838.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 350881 + ... + 351119.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^83889000 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 83889000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157248000).

83889000 is an abundant number, since it is smaller than the sum of its proper divisors (230607000).

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

83889000 is a wasteful number, since it uses less digits than its factorization.

83889000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 83889000 is about 9159.0938416418. The cubic root of 83889000 is about 437.7589215646.

The spelling of 83889000 in words is "eighty-three million, eight hundred eighty-nine thousand".