987369133 has 4 divisors (see below), whose sum is σ = 988647228. Its totient is φ = 986091040.

The previous prime is 987369121. The next prime is 987369167. The reversal of 987369133 is 331963789.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163277284 + 824091849 = 12778^2 + 28707^2 .

It is a cyclic number.

It is not a de Polignac number, because 987369133 - 2¹⁷ = 987238061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987369113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637888 + ... + 639433.

It is an arithmetic number, because the mean of its divisors is an integer number (247161807).

Almost surely, 2^987369133 is an apocalyptic number.

It is an amenable number.

987369133 is a deficient number, since it is larger than the sum of its proper divisors (1278095).

987369133 is a wasteful number, since it uses less digits than its factorization.

987369133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278094.

The product of its digits is 734832, while the sum is 49.

The square root of 987369133 is about 31422.4304120480. The cubic root of 987369133 is about 995.7718590196.

The spelling of 987369133 in words is "nine hundred eighty-seven million, three hundred sixty-nine thousand, one hundred thirty-three".