87866878 has 8 divisors (see below), whose sum is σ = 143782200. Its totient is φ = 39939480.

The previous prime is 87866851. The next prime is 87866899.

87866878 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1996953 + ... + 1996996.

It is an arithmetic number, because the mean of its divisors is an integer number (17972775).

Almost surely, 2^87866878 is an apocalyptic number.

87866878 is a deficient number, since it is larger than the sum of its proper divisors (55915322).

87866878 is a wasteful number, since it uses less digits than its factorization.

87866878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993962.

The product of its digits is 7225344, while the sum is 58.

The square root of 87866878 is about 9373.7334077730. The cubic root of 87866878 is about 444.5716165292.

The spelling of 87866878 in words is "eighty-seven million, eight hundred sixty-six thousand, eight hundred seventy-eight".