86530220 has 48 divisors (see below), whose sum is σ = 208201728. Its totient is φ = 29592000.

The previous prime is 86530217. The next prime is 86530247. The reversal of 86530220 is 2203568.

It is a self number, because there is not a number n which added to its sum of digits gives 86530220.

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, 104729 + ... + 105551.

It is an arithmetic number, because the mean of its divisors is an integer number (4337536).

Almost surely, 2^86530220 is an apocalyptic number.

It is an amenable number.

86530220 is an abundant number, since it is smaller than the sum of its proper divisors (121671508).

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

86530220 is a wasteful number, since it uses less digits than its factorization.

86530220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 86530220 is about 9302.1621142614. The cubic root of 86530220 is about 442.3057676927.

Adding to 86530220 its reverse (2203568), we get a palindrome (88733788).

The spelling of 86530220 in words is "eighty-six million, five hundred thirty thousand, two hundred twenty".