86112020 has 24 divisors (see below), whose sum is σ = 187072200. Its totient is φ = 33256832.

The previous prime is 86112007. The next prime is 86112043. The reversal of 86112020 is 2021168.

It can be written as a sum of positive squares in 4 ways, for example, as 4318084 + 81793936 = 2078^2 + 9044^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 86111983 and 86112001.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 73655 + ... + 74814.

It is an arithmetic number, because the mean of its divisors is an integer number (7794675).

Almost surely, 2^86112020 is an apocalyptic number.

It is an amenable number.

86112020 is an abundant number, since it is smaller than the sum of its proper divisors (100960180).

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

86112020 is a wasteful number, since it uses less digits than its factorization.

86112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148507 (or 148505 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 86112020 is about 9279.6562436332. The cubic root of 86112020 is about 441.5920630290.

Adding to 86112020 its reverse (2021168), we get a palindrome (88133188).

The spelling of 86112020 in words is "eighty-six million, one hundred twelve thousand, twenty".