86219020 has 48 divisors (see below), whose sum is σ = 184947840. Its totient is φ = 33755904.

The previous prime is 86218981. The next prime is 86219033. The reversal of 86219020 is 2091268.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 86219020.

It is an unprimeable number.

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, 311122 + ... + 311398.

It is an arithmetic number, because the mean of its divisors is an integer number (3853080).

Almost surely, 2^86219020 is an apocalyptic number.

It is an amenable number.

86219020 is an abundant number, since it is smaller than the sum of its proper divisors (98728820).

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

86219020 is a wasteful number, since it uses less digits than its factorization.

86219020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 560 counting only the distinct ones).

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

The square root of 86219020 is about 9285.4197535706. The cubic root of 86219020 is about 441.7748899780.

The spelling of 86219020 in words is "eighty-six million, two hundred nineteen thousand, twenty".