86155758 has 128 divisors (see below), whose sum is σ = 220631040. Its totient is φ = 24727680.

The previous prime is 86155757. The next prime is 86155777. The reversal of 86155758 is 85755168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86155757) 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 63 ways as a sum of consecutive naturals, for example, 805141 + ... + 805247.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^86155758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86155758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110315520).

86155758 is an abundant number, since it is smaller than the sum of its proper divisors (134475282).

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

86155758 is a wasteful number, since it uses less digits than its factorization.

86155758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 193 counting only the distinct ones).

The product of its digits is 336000, while the sum is 45.

The square root of 86155758 is about 9282.0126050335. The cubic root of 86155758 is about 441.6668148253. Note that the first 3 decimals are identical.

The spelling of 86155758 in words is "eighty-six million, one hundred fifty-five thousand, seven hundred fifty-eight".