86321228 has 12 divisors (see below), whose sum is σ = 172642512. Its totient is φ = 36994800.

The previous prime is 86321227. The next prime is 86321239. The reversal of 86321228 is 82212368.

86321228 is an admirable number.

It is a super-3 number, since 3×86321228³ (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 86321194 and 86321203.

It is not an unprimeable number, because it can be changed into a prime (86321227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541423 + ... + 1541478.

It is an arithmetic number, because the mean of its divisors is an integer number (14386876).

Almost surely, 2^86321228 is an apocalyptic number.

It is an amenable number.

86321228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86321228 is a wasteful number, since it uses less digits than its factorization.

86321228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082912 (or 3082910 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 86321228 is about 9290.9218057198. The cubic root of 86321228 is about 441.9493878153.

It can be divided in two parts, 8 and 6321228, that added together give a palindrome (6321236).

The spelling of 86321228 in words is "eighty-six million, three hundred twenty-one thousand, two hundred twenty-eight".