9667665 has 48 divisors (see below), whose sum is σ = 19588608. Its totient is φ = 4318848.

The previous prime is 9667663. The next prime is 9667667. The reversal of 9667665 is 5667669.

It is an interprime number because it is at equal distance from previous prime (9667663) and next prime (9667667).

It is not a de Polignac number, because 9667665 - 2¹ = 9667663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

9667665 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9667665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9667661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14479 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (408096).

Almost surely, 2^9667665 is an apocalyptic number.

It is an amenable number.

9667665 is an abundant number, since it is smaller than the sum of its proper divisors (9920943).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9667665 is a wasteful number, since it uses less digits than its factorization.

9667665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 715 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 9667665 is about 3109.2868957367. The cubic root of 9667665 is about 213.0298840567.

The spelling of 9667665 in words is "nine million, six hundred sixty-seven thousand, six hundred sixty-five".