87705700 has 18 divisors (see below), whose sum is σ = 190321586. Its totient is φ = 35082240.

The previous prime is 87705697. The next prime is 87705701. The reversal of 87705700 is 750778.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 28815424 + 58890276 = 5368^2 + 7674^2 .

It is not an unprimeable number, because it can be changed into a prime (87705701) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 438429 + ... + 438628.

Almost surely, 2^87705700 is an apocalyptic number.

It is an amenable number.

87705700 is an abundant number, since it is smaller than the sum of its proper divisors (102615886).

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

87705700 is a wasteful number, since it uses less digits than its factorization.

87705700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877071 (or 877064 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 87705700 is about 9365.1321400181. The cubic root of 87705700 is about 444.2996178583.

The spelling of 87705700 in words is "eighty-seven million, seven hundred five thousand, seven hundred".