87835866 has 16 divisors (see below), whose sum is σ = 175893600. Its totient is φ = 29241648.

The previous prime is 87835859. The next prime is 87835871. The reversal of 87835866 is 66853878.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3856 + ... + 13803.

It is an arithmetic number, because the mean of its divisors is an integer number (10993350).

Almost surely, 2^87835866 is an apocalyptic number.

87835866 is an abundant number, since it is smaller than the sum of its proper divisors (88057734).

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

87835866 is a wasteful number, since it uses less digits than its factorization.

87835866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18493.

The product of its digits is 1935360, while the sum is 51.

The square root of 87835866 is about 9372.0790649674. The cubic root of 87835866 is about 444.5193075605.

The spelling of 87835866 in words is "eighty-seven million, eight hundred thirty-five thousand, eight hundred sixty-six".