86136786 has 48 divisors (see below), whose sum is σ = 199330560. Its totient is φ = 26822880.

The previous prime is 86136767. The next prime is 86136797. The reversal of 86136786 is 68763168.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13521 + ... + 18843.

It is an arithmetic number, because the mean of its divisors is an integer number (4152720).

Almost surely, 2^86136786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86136786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99665280).

86136786 is an abundant number, since it is smaller than the sum of its proper divisors (113193774).

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

86136786 is a wasteful number, since it uses less digits than its factorization.

86136786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391 (or 5388 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 86136786 is about 9280.9905721318. The cubic root of 86136786 is about 441.6343932432.

The spelling of 86136786 in words is "eighty-six million, one hundred thirty-six thousand, seven hundred eighty-six".