87155360 has 24 divisors (see below), whose sum is σ = 205904916. Its totient is φ = 34862080.

The previous prime is 87155359. The next prime is 87155371. The reversal of 87155360 is 6355178.

It can be written as a sum of positive squares in 2 ways, for example, as 81938704 + 5216656 = 9052^2 + 2284^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87155360.

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 3 ways as a sum of consecutive naturals, for example, 272201 + ... + 272520.

Almost surely, 2^87155360 is an apocalyptic number.

87155360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87155360 is an abundant number, since it is smaller than the sum of its proper divisors (118749556).

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

87155360 is a wasteful number, since it uses less digits than its factorization.

87155360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544736 (or 544728 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 87155360 is about 9335.7035085740. The cubic root of 87155360 is about 443.3683630087.

The spelling of 87155360 in words is "eighty-seven million, one hundred fifty-five thousand, three hundred sixty".