86866228 has 12 divisors (see below), whose sum is σ = 154157472. Its totient is φ = 42821240.

The previous prime is 86866217. The next prime is 86866229. The reversal of 86866228 is 82266868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86866229) 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, 152650 + ... + 153217.

It is an arithmetic number, because the mean of its divisors is an integer number (12846456).

Almost surely, 2^86866228 is an apocalyptic number.

It is an amenable number.

86866228 is a deficient number, since it is larger than the sum of its proper divisors (67291244).

86866228 is a wasteful number, since it uses less digits than its factorization.

86866228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305942 (or 305940 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 86866228 is about 9320.2053625443. The cubic root of 86866228 is about 442.8775383501.

The spelling of 86866228 in words is "eighty-six million, eight hundred sixty-six thousand, two hundred twenty-eight".