987847161 has 16 divisors (see below), whose sum is σ = 1506508800. Its totient is φ = 564027408.

The previous prime is 987847123. The next prime is 987847181. The reversal of 987847161 is 161748789.

It is not a de Polignac number, because 987847161 - 2⁹ = 987846649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (987847181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8470 + ... + 45248.

It is an arithmetic number, because the mean of its divisors is an integer number (94156800).

Almost surely, 2^987847161 is an apocalyptic number.

It is an amenable number.

987847161 is a deficient number, since it is larger than the sum of its proper divisors (518661639).

987847161 is a wasteful number, since it uses less digits than its factorization.

987847161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38068.

The product of its digits is 677376, while the sum is 51.

The square root of 987847161 is about 31430.0359687990. The cubic root of 987847161 is about 995.9325318002.

The spelling of 987847161 in words is "nine hundred eighty-seven million, eight hundred forty-seven thousand, one hundred sixty-one".