87903616 has 32 divisors (see below), whose sum is σ = 177357600. Its totient is φ = 43390464.

The previous prime is 87903589. The next prime is 87903619. The reversal of 87903616 is 61630978.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87903619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5766 + ... + 14458.

It is an arithmetic number, because the mean of its divisors is an integer number (5542425).

Almost surely, 2^87903616 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 87903616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88678800).

87903616 is an abundant number, since it is smaller than the sum of its proper divisors (89453984).

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

87903616 is an equidigital number, since it uses as much as digits as its factorization.

87903616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8786 (or 8774 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 87903616 is about 9375.6928277328. The cubic root of 87903616 is about 444.6335678077.

The spelling of 87903616 in words is "eighty-seven million, nine hundred three thousand, six hundred sixteen".