987909043 has 8 divisors (see below), whose sum is σ = 1078257600. Its totient is φ = 897650280.

The previous prime is 987909031. The next prime is 987909053. The reversal of 987909043 is 340909789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 987909043 - 2⁵ = 987909011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987909053) 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 7 ways as a sum of consecutive naturals, for example, 1696 + ... + 44482.

It is an arithmetic number, because the mean of its divisors is an integer number (134782200).

Almost surely, 2^987909043 is an apocalyptic number.

987909043 is a deficient number, since it is larger than the sum of its proper divisors (90348557).

987909043 is a wasteful number, since it uses less digits than its factorization.

987909043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44897.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 987909043 is about 31431.0203938720. The cubic root of 987909043 is about 995.9533275308.

The spelling of 987909043 in words is "nine hundred eighty-seven million, nine hundred nine thousand, forty-three".