87888559 has 4 divisors (see below), whose sum is σ = 95878440. Its totient is φ = 79898680.

The previous prime is 87888539. The next prime is 87888571. The reversal of 87888559 is 95588878.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87888559 - 2¹¹ = 87886511 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87888529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3994924 + ... + 3994945.

It is an arithmetic number, because the mean of its divisors is an integer number (23969610).

Almost surely, 2^87888559 is an apocalyptic number.

87888559 is a deficient number, since it is larger than the sum of its proper divisors (7989881).

87888559 is a wasteful number, since it uses less digits than its factorization.

87888559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7989880.

The product of its digits is 6451200, while the sum is 58.

The square root of 87888559 is about 9374.8898126858. The cubic root of 87888559 is about 444.6081792809.

The spelling of 87888559 in words is "eighty-seven million, eight hundred eighty-eight thousand, five hundred fifty-nine".