9905165 has 8 divisors (see below), whose sum is σ = 11919840. Its totient is φ = 7901712.

The previous prime is 9905141. The next prime is 9905167. The reversal of 9905165 is 5615099.

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 9905165 - 2¹² = 9901069 is a prime.

It is a super-2 number, since 2×9905165² = 196224587354450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9905167) 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, 719 + ... + 4508.

It is an arithmetic number, because the mean of its divisors is an integer number (1489980).

Almost surely, 2^9905165 is an apocalyptic number.

It is an amenable number.

9905165 is a deficient number, since it is larger than the sum of its proper divisors (2014675).

9905165 is a wasteful number, since it uses less digits than its factorization.

9905165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 9905165 is about 3147.2472098645. The cubic root of 9905165 is about 214.7602519542.

The spelling of 9905165 in words is "nine million, nine hundred five thousand, one hundred sixty-five".