9905265 has 24 divisors (see below), whose sum is σ = 17571840. Its totient is φ = 5158944.

The previous prime is 9905263. The next prime is 9905267. The reversal of 9905265 is 5625099.

It is an interprime number because it is at equal distance from previous prime (9905263) and next prime (9905267).

It is not a de Polignac number, because 9905265 - 2¹ = 9905263 is a prime.

It is a super-2 number, since 2×9905265² = 196228549440450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9905261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 625 + ... + 4494.

It is an arithmetic number, because the mean of its divisors is an integer number (732160).

Almost surely, 2^9905265 is an apocalyptic number.

It is an amenable number.

9905265 is a deficient number, since it is larger than the sum of its proper divisors (7666575).

9905265 is a wasteful number, since it uses less digits than its factorization.

9905265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173 (or 5170 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 9905265 is about 3147.2630967239. The cubic root of 9905265 is about 214.7609746732.

The spelling of 9905265 in words is "nine million, nine hundred five thousand, two hundred sixty-five".