9912665 has 16 divisors (see below), whose sum is σ = 13789440. Its totient is φ = 6699840.

The previous prime is 9912659. The next prime is 9912671. The reversal of 9912665 is 5662199.

It is an interprime number because it is at equal distance from previous prime (9912659) and next prime (9912671).

It is not a de Polignac number, because 9912665 - 2¹⁴ = 9896281 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 491 + ... + 4479.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^9912665 is an apocalyptic number.

It is an amenable number.

9912665 is a deficient number, since it is larger than the sum of its proper divisors (3876775).

9912665 is a wasteful number, since it uses less digits than its factorization.

9912665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072.

The product of its digits is 29160, while the sum is 38.

The square root of 9912665 is about 3148.4385018609. The cubic root of 9912665 is about 214.8144423868.

The spelling of 9912665 in words is "nine million, nine hundred twelve thousand, six hundred sixty-five".