87836180 has 24 divisors (see below), whose sum is σ = 185808168. Its totient is φ = 34876928.

The previous prime is 87836179. The next prime is 87836201. The reversal of 87836180 is 8163878.

It can be written as a sum of positive squares in 4 ways, for example, as 39589264 + 48246916 = 6292^2 + 6946^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13289 + ... + 18768.

It is an arithmetic number, because the mean of its divisors is an integer number (7742007).

Almost surely, 2^87836180 is an apocalyptic number.

It is an amenable number.

87836180 is an abundant number, since it is smaller than the sum of its proper divisors (97971988).

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

87836180 is a wasteful number, since it uses less digits than its factorization.

87836180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32203 (or 32201 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 87836180 is about 9372.0958168384. The cubic root of 87836180 is about 444.5198372564.

The spelling of 87836180 in words is "eighty-seven million, eight hundred thirty-six thousand, one hundred eighty".