86118500 has 48 divisors (see below), whose sum is σ = 202566000. Its totient is φ = 31795200.

The previous prime is 86118493. The next prime is 86118503. The reversal of 86118500 is 581168.

It can be written as a sum of positive squares in 8 ways, for example, as 55026724 + 31091776 = 7418^2 + 5576^2 .

It is not an unprimeable number, because it can be changed into a prime (86118503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125 + ... + 13124.

It is an arithmetic number, because the mean of its divisors is an integer number (4220125).

Almost surely, 2^86118500 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 86118500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101283000).

86118500 is an abundant number, since it is smaller than the sum of its proper divisors (116447500).

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

86118500 is a wasteful number, since it uses less digits than its factorization.

86118500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13281 (or 13269 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 86118500 is about 9280.0053879295. The cubic root of 86118500 is about 441.6031394726.

Adding to 86118500 its reverse (581168), we get a palindrome (86699668).

The spelling of 86118500 in words is "eighty-six million, one hundred eighteen thousand, five hundred".