84887028 has 120 divisors (see below), whose sum is σ = 233412872. Its totient is φ = 26873856.

The previous prime is 84887027. The next prime is 84887039. The reversal of 84887028 is 82078848.

It can be written as a sum of positive squares in 4 ways, for example, as 29354724 + 55532304 = 5418^2 + 7452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84887027) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 875076 + ... + 875172.

Almost surely, 2^84887028 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 84887028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116706436).

84887028 is an abundant number, since it is smaller than the sum of its proper divisors (148525844).

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

84887028 is a wasteful number, since it uses less digits than its factorization.

84887028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The square root of 84887028 is about 9213.4156532743. The cubic root of 84887028 is about 439.4880892298.

The spelling of 84887028 in words is "eighty-four million, eight hundred eighty-seven thousand, twenty-eight".