9985757 has 4 divisors (see below), whose sum is σ = 10002816. Its totient is φ = 9968700.

The previous prime is 9985753. The next prime is 9985763. The reversal of 9985757 is 7575899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9985757 - 2² = 9985753 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 (9985753) 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, 7619 + ... + 8832.

It is an arithmetic number, because the mean of its divisors is an integer number (2500704).

Almost surely, 2^9985757 is an apocalyptic number.

It is an amenable number.

9985757 is a deficient number, since it is larger than the sum of its proper divisors (17059).

9985757 is a wasteful number, since it uses less digits than its factorization.

9985757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17058.

The product of its digits is 793800, while the sum is 50.

The square root of 9985757 is about 3160.0248416745. The cubic root of 9985757 is about 215.3411350254.

The spelling of 9985757 in words is "nine million, nine hundred eighty-five thousand, seven hundred fifty-seven".