86993228 has 36 divisors (see below), whose sum is σ = 179119080. Its totient is φ = 36856512.

The previous prime is 86993209. The next prime is 86993251. The reversal of 86993228 is 82239968.

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, 14951 + ... + 19937.

It is an arithmetic number, because the mean of its divisors is an integer number (4975530).

Almost surely, 2^86993228 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 86993228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89559540).

86993228 is an abundant number, since it is smaller than the sum of its proper divisors (92125852).

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

86993228 is a wasteful number, since it uses less digits than its factorization.

86993228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094 (or 5085 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 86993228 is about 9327.0160287200. The cubic root of 86993228 is about 443.0932649153.

The spelling of 86993228 in words is "eighty-six million, nine hundred ninety-three thousand, two hundred twenty-eight".