87135648 has 24 divisors (see below), whose sum is σ = 228731328. Its totient is φ = 29045184.

The previous prime is 87135599. The next prime is 87135677. The reversal of 87135648 is 84653178.

It is a tau number, because it is divible by the number of its divisors (24).

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, 453736 + ... + 453927.

It is an arithmetic number, because the mean of its divisors is an integer number (9530472).

Almost surely, 2^87135648 is an apocalyptic number.

It is an amenable number.

87135648 is an abundant number, since it is smaller than the sum of its proper divisors (141595680).

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

87135648 is a wasteful number, since it uses less digits than its factorization.

87135648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907676 (or 907668 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 87135648 is about 9334.6477169736. The cubic root of 87135648 is about 443.3349348250.

The spelling of 87135648 in words is "eighty-seven million, one hundred thirty-five thousand, six hundred forty-eight".