87335520 has 96 divisors (see below), whose sum is σ = 280379232. Its totient is φ = 22843392.

The previous prime is 87335491. The next prime is 87335543. The reversal of 87335520 is 2553378.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23724 + ... + 27156.

It is an arithmetic number, because the mean of its divisors is an integer number (2920617).

Almost surely, 2^87335520 is an apocalyptic number.

87335520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87335520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140189616).

87335520 is an abundant number, since it is smaller than the sum of its proper divisors (193043712).

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

87335520 is a wasteful number, since it uses less digits than its factorization.

87335520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504 (or 3496 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 87335520 is about 9345.3475055773. The cubic root of 87335520 is about 443.6736502909.

Adding to 87335520 its reverse (2553378), we get a palindrome (89888898).

The spelling of 87335520 in words is "eighty-seven million, three hundred thirty-five thousand, five hundred twenty".