87986210 has 32 divisors (see below), whose sum is σ = 171046512. Its totient is φ = 32394240.

The previous prime is 87986179. The next prime is 87986231. The reversal of 87986210 is 1268978.

It can be written as a sum of positive squares in 8 ways, for example, as 35438209 + 52548001 = 5953^2 + 7249^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 15 ways as a sum of consecutive naturals, for example, 58670 + ... + 60150.

Almost surely, 2^87986210 is an apocalyptic number.

87986210 is a deficient number, since it is larger than the sum of its proper divisors (83060302).

87986210 is a wasteful number, since it uses less digits than its factorization.

87986210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 87986210 is about 9380.0964813801. The cubic root of 87986210 is about 444.7727830475.

The spelling of 87986210 in words is "eighty-seven million, nine hundred eighty-six thousand, two hundred ten".