9967605 has 8 divisors (see below), whose sum is σ = 15948192. Its totient is φ = 5316048.

The previous prime is 9967603. The next prime is 9967621. The reversal of 9967605 is 5067699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9967605 - 2¹ = 9967603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9967603) 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 7 ways as a sum of consecutive naturals, for example, 332239 + ... + 332268.

It is an arithmetic number, because the mean of its divisors is an integer number (1993524).

Almost surely, 2^9967605 is an apocalyptic number.

It is an amenable number.

9967605 is a deficient number, since it is larger than the sum of its proper divisors (5980587).

9967605 is a wasteful number, since it uses less digits than its factorization.

9967605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664515.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 9967605 is about 3157.1514059354. The cubic root of 9967605 is about 215.2105742951.

The spelling of 9967605 in words is "nine million, nine hundred sixty-seven thousand, six hundred five".