86708500 has 72 divisors (see below), whose sum is σ = 202515768. Its totient is φ = 32320000.

The previous prime is 86708497. The next prime is 86708509. The reversal of 86708500 is 580768.

It can be written as a sum of positive squares in 12 ways, for example, as 5924356 + 80784144 = 2434^2 + 8988^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86708509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 858450 + ... + 858550.

It is an arithmetic number, because the mean of its divisors is an integer number (2812719).

Almost surely, 2^86708500 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 86708500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101257884).

86708500 is an abundant number, since it is smaller than the sum of its proper divisors (115807268).

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

86708500 is a wasteful number, since it uses less digits than its factorization.

86708500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 86708500 is about 9311.7399018658. The cubic root of 86708500 is about 442.6093232179.

The spelling of 86708500 in words is "eighty-six million, seven hundred eight thousand, five hundred".