9909465 has 16 divisors (see below), whose sum is σ = 15918336. Its totient is φ = 5264000.

The previous prime is 9909461. The next prime is 9909499. The reversal of 9909465 is 5649099.

It is a happy number.

It is not a de Polignac number, because 9909465 - 2² = 9909461 is a prime.

It is an Ulam number.

9909465 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3040 + ... + 5390.

It is an arithmetic number, because the mean of its divisors is an integer number (994896).

Almost surely, 2^9909465 is an apocalyptic number.

It is an amenable number.

9909465 is a deficient number, since it is larger than the sum of its proper divisors (6008871).

9909465 is a wasteful number, since it uses less digits than its factorization.

9909465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 9909465 is about 3147.9302724171. The cubic root of 9909465 is about 214.7913244799.

The spelling of 9909465 in words is "nine million, nine hundred nine thousand, four hundred sixty-five".