86686250 has 40 divisors (see below), whose sum is σ = 185715552. Its totient is φ = 29718000.

The previous prime is 86686219. The next prime is 86686253. The reversal of 86686250 is 5268668.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86686198 and 86686207.

It is not an unprimeable number, because it can be changed into a prime (86686253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3797 + ... + 13703.

Almost surely, 2^86686250 is an apocalyptic number.

86686250 is an abundant number, since it is smaller than the sum of its proper divisors (99029302).

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

86686250 is an equidigital number, since it uses as much as digits as its factorization.

86686250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9936 (or 9921 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 86686250 is about 9310.5450968244. The cubic root of 86686250 is about 442.5714611093.

The spelling of 86686250 in words is "eighty-six million, six hundred eighty-six thousand, two hundred fifty".