87311200 has 36 divisors (see below), whose sum is σ = 213150420. Its totient is φ = 34924160.

The previous prime is 87311183. The next prime is 87311207. The reversal of 87311200 is 211378.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87311207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53770 + ... + 55369.

It is an arithmetic number, because the mean of its divisors is an integer number (5920845).

Almost surely, 2^87311200 is an apocalyptic number.

87311200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87311200 is an abundant number, since it is smaller than the sum of its proper divisors (125839220).

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

87311200 is a wasteful number, since it uses less digits than its factorization.

87311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109159 (or 109146 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 87311200 is about 9344.0462327623. The cubic root of 87311200 is about 443.6324637462.

Adding to 87311200 its reverse (211378), we get a palindrome (87522578).

The spelling of 87311200 in words is "eighty-seven million, three hundred eleven thousand, two hundred".