987042163 has 4 divisors (see below), whose sum is σ = 994576968. Its totient is φ = 979507360.

The previous prime is 987042157. The next prime is 987042181. The reversal of 987042163 is 361240789.

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

It is a cyclic number.

It is not a de Polignac number, because 987042163 - 2²¹ = 984945011 is a prime.

It is a Smith number, since the sum of its digits (40) 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 not an unprimeable number, because it can be changed into a prime (987042103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3767206 + ... + 3767467.

It is an arithmetic number, because the mean of its divisors is an integer number (248644242).

Almost surely, 2^987042163 is an apocalyptic number.

987042163 is a deficient number, since it is larger than the sum of its proper divisors (7534805).

987042163 is a wasteful number, since it uses less digits than its factorization.

987042163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7534804.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 987042163 is about 31417.2271691822. The cubic root of 987042163 is about 995.6619293556.

The spelling of 987042163 in words is "nine hundred eighty-seven million, forty-two thousand, one hundred sixty-three".