86216850 has 72 divisors (see below), whose sum is σ = 237336372. Its totient is φ = 22425600.

The previous prime is 86216833. The next prime is 86216861. The reversal of 86216850 is 5861268.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 31708161 + 54508689 = 5631^2 + 7383^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16114 + ... + 20786.

Almost surely, 2^86216850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86216850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118668186).

86216850 is an abundant number, since it is smaller than the sum of its proper divisors (151119522).

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

86216850 is a wasteful number, since it uses less digits than its factorization.

86216850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732 (or 4724 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 86216850 is about 9285.3029029752. The cubic root of 86216850 is about 441.7711836823.

The spelling of 86216850 in words is "eighty-six million, two hundred sixteen thousand, eight hundred fifty".