987616 has 24 divisors (see below), whose sum is σ = 2222640. Its totient is φ = 423168.

The previous prime is 987607. The next prime is 987631. The reversal of 987616 is 616789.

987616 is nontrivially palindromic in base 9.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1981 + ... + 2428.

It is an arithmetic number, because the mean of its divisors is an integer number (92610).

2⁹⁸⁷⁶¹⁶ is an apocalyptic number.

It is an amenable number.

987616 is an abundant number, since it is smaller than the sum of its proper divisors (1235024).

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

987616 is a wasteful number, since it uses less digits than its factorization.

987616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426 (or 4418 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 987616 is about 993.7887099379. The cubic root of 987616 is about 99.5854841401.

It can be divided in two parts, 9 and 87616, that multiplied together give a square (788544 = 888²).

The spelling of 987616 in words is "nine hundred eighty-seven thousand, six hundred sixteen".