83986650 has 216 divisors, whose sum is σ = 265322304. Its totient is φ = 18878400.

The previous prime is 83986649. The next prime is 83986673. The reversal of 83986650 is 5668938.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 83986596 and 83986605.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1786927 + ... + 1786973.

It is an arithmetic number, because the mean of its divisors is an integer number (1228344).

Almost surely, 2^83986650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83986650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132661152).

83986650 is an abundant number, since it is smaller than the sum of its proper divisors (181335654).

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

83986650 is a wasteful number, since it uses less digits than its factorization.

83986650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 83986650 is about 9164.4230587637. The cubic root of 83986650 is about 437.9287117356.

The spelling of 83986650 in words is "eighty-three million, nine hundred eighty-six thousand, six hundred fifty".