87858288 has 120 divisors (see below), whose sum is σ = 287683968. Its totient is φ = 24506496.

The previous prime is 87858263. The next prime is 87858341. The reversal of 87858288 is 88285878.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42331 + ... + 44357.

Almost surely, 2^87858288 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 87858288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143841984).

87858288 is an abundant number, since it is smaller than the sum of its proper divisors (199825680).

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

87858288 is a wasteful number, since it uses less digits than its factorization.

87858288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2082 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 54.

The square root of 87858288 is about 9373.2752013370. The cubic root of 87858288 is about 444.5571287240.

The spelling of 87858288 in words is "eighty-seven million, eight hundred fifty-eight thousand, two hundred eighty-eight".