85887587 has 8 divisors (see below), whose sum is σ = 91087056. Its totient is φ = 80704512.

The previous prime is 85887563. The next prime is 85887617. The reversal of 85887587 is 78578858.

It is a happy number.

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 85887587 - 2⁶ = 85887523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85887517) by changing a digit.

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, 7688 + ... + 15194.

It is an arithmetic number, because the mean of its divisors is an integer number (11385882).

Almost surely, 2^85887587 is an apocalyptic number.

85887587 is a deficient number, since it is larger than the sum of its proper divisors (5199469).

85887587 is a wasteful number, since it uses less digits than its factorization.

85887587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8197.

The product of its digits is 5017600, while the sum is 56.

The square root of 85887587 is about 9267.5556108394. Note that the first 3 decimals coincide. The cubic root of 85887587 is about 441.2080900844.

The spelling of 85887587 in words is "eighty-five million, eight hundred eighty-seven thousand, five hundred eighty-seven".