987849471 has 32 divisors (see below), whose sum is σ = 1576747008. Its totient is φ = 537878880.

The previous prime is 987849427. The next prime is 987849479. The reversal of 987849471 is 174948789.

It is not a de Polignac number, because 987849471 - 2¹⁴ = 987833087 is a prime.

It is a super-3 number, since 3×987849471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987849479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127120 + ... + 134666.

It is an arithmetic number, because the mean of its divisors is an integer number (49273344).

Almost surely, 2^987849471 is an apocalyptic number.

987849471 is a deficient number, since it is larger than the sum of its proper divisors (588897537).

987849471 is a wasteful number, since it uses less digits than its factorization.

987849471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7851.

The product of its digits is 4064256, while the sum is 57.

The square root of 987849471 is about 31430.0727170651. The cubic root of 987849471 is about 995.9333081020.

The spelling of 987849471 in words is "nine hundred eighty-seven million, eight hundred forty-nine thousand, four hundred seventy-one".