87165700 has 18 divisors (see below), whose sum is σ = 189149786. Its totient is φ = 34866240.

The previous prime is 87165691. The next prime is 87165703. The reversal of 87165700 is 756178.

It can be written as a sum of positive squares in 3 ways, for example, as 4137156 + 83028544 = 2034^2 + 9112^2 .

It is not an unprimeable number, because it can be changed into a prime (87165703) 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, 435729 + ... + 435928.

Almost surely, 2^87165700 is an apocalyptic number.

It is an amenable number.

87165700 is an abundant number, since it is smaller than the sum of its proper divisors (101984086).

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

87165700 is a wasteful number, since it uses less digits than its factorization.

87165700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871671 (or 871664 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 87165700 is about 9336.2572800882. The cubic root of 87165700 is about 443.3858958664.

The spelling of 87165700 in words is "eighty-seven million, one hundred sixty-five thousand, seven hundred".