87028816 has 40 divisors (see below), whose sum is σ = 202854080. Its totient is φ = 35334144.

The previous prime is 87028807. The next prime is 87028817. The reversal of 87028816 is 61882078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87028817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18321 + ... + 22576.

It is an arithmetic number, because the mean of its divisors is an integer number (5071352).

Almost surely, 2^87028816 is an apocalyptic number.

It is an amenable number.

87028816 is an abundant number, since it is smaller than the sum of its proper divisors (115825264).

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

87028816 is a wasteful number, since it uses less digits than its factorization.

87028816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40931 (or 40925 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 87028816 is about 9328.9236249419. The cubic root of 87028816 is about 443.1536782512.

The spelling of 87028816 in words is "eighty-seven million, twenty-eight thousand, eight hundred sixteen".