987853620 has 96 divisors (see below), whose sum is σ = 3048135552. Its totient is φ = 237500928.

The previous prime is 987853619. The next prime is 987853621. The reversal of 987853620 is 26358789.

It is an interprime number because it is at equal distance from previous prime (987853619) and next prime (987853621).

It is a self number, because there is not a number n which added to its sum of digits gives 987853620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987853621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18814 + ... + 48266.

It is an arithmetic number, because the mean of its divisors is an integer number (31751412).

Almost surely, 2^987853620 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 987853620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524067776).

987853620 is an abundant number, since it is smaller than the sum of its proper divisors (2060281932).

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

987853620 is a wasteful number, since it uses less digits than its factorization.

987853620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29521 (or 29519 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 987853620 is about 31430.1387206611. The cubic root of 987853620 is about 995.9347024175.

The spelling of 987853620 in words is "nine hundred eighty-seven million, eight hundred fifty-three thousand, six hundred twenty".