9985587 has 8 divisors (see below), whose sum is σ = 13334736. Its totient is φ = 6646752.

The previous prime is 9985559. The next prime is 9985601. The reversal of 9985587 is 7855899.

9985587 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9985587 - 2¹⁰ = 9984563 is a prime.

9985587 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9985187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 4469.

It is an arithmetic number, because the mean of its divisors is an integer number (1666842).

Almost surely, 2^9985587 is an apocalyptic number.

9985587 is a deficient number, since it is larger than the sum of its proper divisors (3349149).

9985587 is a wasteful number, since it uses less digits than its factorization.

9985587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157.

The product of its digits is 907200, while the sum is 51.

The square root of 9985587 is about 3159.9979430373. The cubic root of 9985587 is about 215.3399130115.

The spelling of 9985587 in words is "nine million, nine hundred eighty-five thousand, five hundred eighty-seven".