87888878 has 64 divisors (see below), whose sum is σ = 177292800. Its totient is φ = 31626240.

The previous prime is 87888863. The next prime is 87888883.

87888878 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87888878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154178 + ... + 154746.

It is an arithmetic number, because the mean of its divisors is an integer number (2770200).

Almost surely, 2^87888878 is an apocalyptic number.

87888878 is an abundant number, since it is smaller than the sum of its proper divisors (89403922).

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

87888878 is a wasteful number, since it uses less digits than its factorization.

87888878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665.

The product of its digits is 12845056, while the sum is 62.

The square root of 87888878 is about 9374.9068262037. The cubic root of 87888878 is about 444.6087171964.

The spelling of 87888878 in words is "eighty-seven million, eight hundred eighty-eight thousand, eight hundred seventy-eight".