987133959 has 60 divisors (see below), whose sum is σ = 1739368224. Its totient is φ = 556186176.

The previous prime is 987133933. The next prime is 987133991. The reversal of 987133959 is 959331789.

It is not a de Polignac number, because 987133959 - 2²³ = 978745351 is a prime.

It is a super-2 number, since 2×987133959² = 1948866906022027362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987143959) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 288034 + ... + 291440.

Almost surely, 2^987133959 is an apocalyptic number.

987133959 is a deficient number, since it is larger than the sum of its proper divisors (752234265).

987133959 is a wasteful number, since it uses less digits than its factorization.

987133959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506 (or 3490 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 987133959 is about 31418.6880534500. The cubic root of 987133959 is about 995.6927942814.

The spelling of 987133959 in words is "nine hundred eighty-seven million, one hundred thirty-three thousand, nine hundred fifty-nine".