987489355 has 4 divisors (see below), whose sum is σ = 1184987232. Its totient is φ = 789991480.

The previous prime is 987489343. The next prime is 987489379. The reversal of 987489355 is 553984789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553984789 = 3137 ⋅176597.

It is not a de Polignac number, because 987489355 - 2⁷ = 987489227 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 987489355.

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, 98748931 + ... + 98748940.

It is an arithmetic number, because the mean of its divisors is an integer number (296246808).

Almost surely, 2^987489355 is an apocalyptic number.

987489355 is a deficient number, since it is larger than the sum of its proper divisors (197497877).

987489355 is a wasteful number, since it uses less digits than its factorization.

987489355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197497876.

The product of its digits is 10886400, while the sum is 58.

The square root of 987489355 is about 31424.3433503391. The cubic root of 987489355 is about 995.8122724178.

The spelling of 987489355 in words is "nine hundred eighty-seven million, four hundred eighty-nine thousand, three hundred fifty-five".