86912020 has 48 divisors (see below), whose sum is σ = 197568000. Its totient is φ = 31925376.

The previous prime is 86912011. The next prime is 86912027. The reversal of 86912020 is 2021968.

It is a happy number.

It is a super-5 number, since 5×86912020⁵ (a number of 41 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86912020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86912027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57231 + ... + 58729.

It is an arithmetic number, because the mean of its divisors is an integer number (4116000).

Almost surely, 2^86912020 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 86912020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98784000).

86912020 is an abundant number, since it is smaller than the sum of its proper divisors (110655980).

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

86912020 is a wasteful number, since it uses less digits than its factorization.

86912020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 86912020 is about 9322.6616371077. The cubic root of 86912020 is about 442.9553464394.

Adding to 86912020 its reverse (2021968), we get a palindrome (88933988).

The spelling of 86912020 in words is "eighty-six million, nine hundred twelve thousand, twenty".