87849916 has 24 divisors (see below), whose sum is σ = 191673216. Its totient is φ = 34227120.

The previous prime is 87849913. The next prime is 87849917. The reversal of 87849916 is 61994878.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87849911) 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, 142306 + ... + 142921.

It is an arithmetic number, because the mean of its divisors is an integer number (7986384).

Almost surely, 2^87849916 is an apocalyptic number.

It is an amenable number.

87849916 is an abundant number, since it is smaller than the sum of its proper divisors (103823300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87849916 is a wasteful number, since it uses less digits than its factorization.

87849916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285249 (or 285247 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The square root of 87849916 is about 9372.8286018683. The cubic root of 87849916 is about 444.5430076866.

The spelling of 87849916 in words is "eighty-seven million, eight hundred forty-nine thousand, nine hundred sixteen".