86508500 has 48 divisors (see below), whose sum is σ = 203483280. Its totient is φ = 31939200.

The previous prime is 86508491. The next prime is 86508509. The reversal of 86508500 is 580568.

It is an interprime number because it is at equal distance from previous prime (86508491) and next prime (86508509).

It can be written as a sum of positive squares in 8 ways, for example, as 72114064 + 14394436 = 8492^2 + 3794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86508509) 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, 155 + ... + 13154.

It is an arithmetic number, because the mean of its divisors is an integer number (4239235).

Almost surely, 2^86508500 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 86508500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101741640).

86508500 is an abundant number, since it is smaller than the sum of its proper divisors (116974780).

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

86508500 is a wasteful number, since it uses less digits than its factorization.

86508500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13341 (or 13329 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 86508500 is about 9300.9945704747. The cubic root of 86508500 is about 442.2687567879.

The spelling of 86508500 in words is "eighty-six million, five hundred eight thousand, five hundred".