87398180 has 24 divisors (see below), whose sum is σ = 183980160. Its totient is φ = 34874720.

The previous prime is 87398161. The next prime is 87398189. The reversal of 87398180 is 8189378.

It is not an unprimeable number, because it can be changed into a prime (87398189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3551 + ... + 13689.

It is an arithmetic number, because the mean of its divisors is an integer number (7665840).

Almost surely, 2^87398180 is an apocalyptic number.

It is an amenable number.

87398180 is an abundant number, since it is smaller than the sum of its proper divisors (96581980).

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

87398180 is a wasteful number, since it uses less digits than its factorization.

87398180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10579 (or 10577 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 87398180 is about 9348.6993747794. The cubic root of 87398180 is about 443.7797313942.

It can be divided in two parts, 87398 and 180, that added together give a palindrome (87578).

The spelling of 87398180 in words is "eighty-seven million, three hundred ninety-eight thousand, one hundred eighty".