9505985 has 16 divisors (see below), whose sum is σ = 12268800. Its totient is φ = 7047936.

The previous prime is 9505981. The next prime is 9506011. The reversal of 9505985 is 5895059.

It is a happy number.

It is not a de Polignac number, because 9505985 - 2² = 9505981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9505981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3401 + ... + 5529.

It is an arithmetic number, because the mean of its divisors is an integer number (766800).

Almost surely, 2^9505985 is an apocalyptic number.

9505985 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9505985 is a deficient number, since it is larger than the sum of its proper divisors (2762815).

9505985 is a wasteful number, since it uses less digits than its factorization.

9505985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200.

The product of its (nonzero) digits is 81000, while the sum is 41.

The square root of 9505985 is about 3083.1777438221. The cubic root of 9505985 is about 211.8356460237.

The spelling of 9505985 in words is "nine million, five hundred five thousand, nine hundred eighty-five".