987620 has 48 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 354816.

The previous prime is 987607. The next prime is 987631. The reversal of 987620 is 26789.

987620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987620.

It is an unprimeable number.

987620 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8684 + ... + 8796.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2⁹⁸⁷⁶²⁰ 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 987620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149120).

987620 is an abundant number, since it is smaller than the sum of its proper divisors (1310620).

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

987620 is a wasteful number, since it uses less digits than its factorization.

987620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 987620 is about 993.7907224361. The cubic root of 987620 is about 99.5856185856.

The spelling of 987620 in words is "nine hundred eighty-seven thousand, six hundred twenty".