87889655 has 8 divisors (see below), whose sum is σ = 120534432. Its totient is φ = 60267168.

The previous prime is 87889651. The next prime is 87889661. The reversal of 87889655 is 55698878.

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

It is a cyclic number.

It is not a de Polignac number, because 87889655 - 2² = 87889651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87889655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87889651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255532 + ... + 1255601.

It is an arithmetic number, because the mean of its divisors is an integer number (15066804).

Almost surely, 2^87889655 is an apocalyptic number.

87889655 is a deficient number, since it is larger than the sum of its proper divisors (32644777).

87889655 is a wasteful number, since it uses less digits than its factorization.

87889655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511145.

The product of its digits is 4838400, while the sum is 56.

The square root of 87889655 is about 9374.9482665239. The cubic root of 87889655 is about 444.6100274113.

The spelling of 87889655 in words is "eighty-seven million, eight hundred eighty-nine thousand, six hundred fifty-five".