9985727 has 4 divisors (see below), whose sum is σ = 10001496. Its totient is φ = 9969960.

The previous prime is 9985709. The next prime is 9985739. The reversal of 9985727 is 7275899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7275899 = 1009 ⋅7211.

It is a cyclic number.

It is not a de Polignac number, because 9985727 - 2²⁰ = 8937151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975727) 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, 6893 + ... + 8214.

It is an arithmetic number, because the mean of its divisors is an integer number (2500374).

Almost surely, 2^9985727 is an apocalyptic number.

9985727 is a deficient number, since it is larger than the sum of its proper divisors (15769).

9985727 is a wasteful number, since it uses less digits than its factorization.

9985727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15768.

The product of its digits is 317520, while the sum is 47.

The square root of 9985727 is about 3160.0200948728. The cubic root of 9985727 is about 215.3409193769.

The spelling of 9985727 in words is "nine million, nine hundred eighty-five thousand, seven hundred twenty-seven".