87028866 has 24 divisors (see below), whose sum is σ = 192576384. Its totient is φ = 28392120.

The previous prime is 87028853. The next prime is 87028867. The reversal of 87028866 is 66882078.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87028867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50590 + ... + 52281.

It is an arithmetic number, because the mean of its divisors is an integer number (8024016).

Almost surely, 2^87028866 is an apocalyptic number.

87028866 is an abundant number, since it is smaller than the sum of its proper divisors (105547518).

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

87028866 is a wasteful number, since it uses less digits than its factorization.

87028866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102926 (or 102923 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 87028866 is about 9328.9263047791. The cubic root of 87028866 is about 443.1537631184.

The spelling of 87028866 in words is "eighty-seven million, twenty-eight thousand, eight hundred sixty-six".