987849423 has 12 divisors (see below), whose sum is σ = 1556611368. Its totient is φ = 598696560.

The previous prime is 987849409. The next prime is 987849427. The reversal of 987849423 is 324948789.

It is not a de Polignac number, because 987849423 - 2⁸ = 987849167 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 987849423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987849427) 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 11 ways as a sum of consecutive naturals, for example, 4989040 + ... + 4989237.

It is an arithmetic number, because the mean of its divisors is an integer number (129717614).

Almost surely, 2^987849423 is an apocalyptic number.

987849423 is a deficient number, since it is larger than the sum of its proper divisors (568761945).

987849423 is a wasteful number, since it uses less digits than its factorization.

987849423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9978294 (or 9978291 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 987849423 is about 31430.0719534652. The cubic root of 987849423 is about 995.9332919710.

The spelling of 987849423 in words is "nine hundred eighty-seven million, eight hundred forty-nine thousand, four hundred twenty-three".