86081500 has 48 divisors (see below), whose sum is σ = 189876960. Its totient is φ = 34089600.

The previous prime is 86081497. The next prime is 86081519. The reversal of 86081500 is 518068.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52696 + ... + 54304.

It is an arithmetic number, because the mean of its divisors is an integer number (3955770).

Almost surely, 2^86081500 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 86081500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94938480).

86081500 is an abundant number, since it is smaller than the sum of its proper divisors (103795460).

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

86081500 is a wasteful number, since it uses less digits than its factorization.

86081500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 86081500 is about 9278.0116404324. The cubic root of 86081500 is about 441.5398868741.

Adding to 86081500 its reverse (518068), we get a palindrome (86599568).

The spelling of 86081500 in words is "eighty-six million, eighty-one thousand, five hundred".