86356228 has 36 divisors (see below), whose sum is σ = 177036300. Its totient is φ = 36748992.

The previous prime is 86356219. The next prime is 86356247. The reversal of 86356228 is 82265368.

It can be written as a sum of positive squares in 2 ways, for example, as 12945604 + 73410624 = 3598^2 + 8568^2 .

It is a super-2 number, since 2×86356228² = 14914796228775968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27726 + ... + 30682.

It is an arithmetic number, because the mean of its divisors is an integer number (4917675).

Almost surely, 2^86356228 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 86356228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88518150).

86356228 is an abundant number, since it is smaller than the sum of its proper divisors (90680072).

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

86356228 is a wasteful number, since it uses less digits than its factorization.

86356228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3115 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 86356228 is about 9292.8051738966. The cubic root of 86356228 is about 442.0091110098.

The spelling of 86356228 in words is "eighty-six million, three hundred fifty-six thousand, two hundred twenty-eight".