87888786 has 16 divisors (see below), whose sum is σ = 177519168. Its totient is φ = 29006000.

The previous prime is 87888769. The next prime is 87888797. The reversal of 87888786 is 68788878.

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, 71910 + ... + 73121.

It is an arithmetic number, because the mean of its divisors is an integer number (11094948).

Almost surely, 2^87888786 is an apocalyptic number.

87888786 is an abundant number, since it is smaller than the sum of its proper divisors (89630382).

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

87888786 is a wasteful number, since it uses less digits than its factorization.

87888786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145137.

The product of its digits is 9633792, while the sum is 60.

The square root of 87888786 is about 9374.9019194869. The cubic root of 87888786 is about 444.6085620610.

The spelling of 87888786 in words is "eighty-seven million, eight hundred eighty-eight thousand, seven hundred eighty-six".