9121607 has 4 divisors (see below), whose sum is σ = 9950856. Its totient is φ = 8292360.

The previous prime is 9121601. The next prime is 9121621. The reversal of 9121607 is 7061219.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7061219 = 11 ⋅641929.

It is a cyclic number.

It is not a de Polignac number, because 9121607 - 2¹⁴ = 9105223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9121601) 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 3 ways as a sum of consecutive naturals, for example, 414608 + ... + 414629.

It is an arithmetic number, because the mean of its divisors is an integer number (2487714).

Almost surely, 2^9121607 is an apocalyptic number.

9121607 is a deficient number, since it is larger than the sum of its proper divisors (829249).

9121607 is a wasteful number, since it uses less digits than its factorization.

9121607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829248.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 9121607 is about 3020.1998278260. The cubic root of 9121607 is about 208.9410561554.

The spelling of 9121607 in words is "nine million, one hundred twenty-one thousand, six hundred seven".