9121793 has 4 divisors (see below), whose sum is σ = 9138180. Its totient is φ = 9105408.

The previous prime is 9121787. The next prime is 9121799. The reversal of 9121793 is 3971219.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (9121787) and next prime (9121799).

It can be written as a sum of positive squares in 2 ways, for example, as 5053504 + 4068289 = 2248^2 + 2017^2 .

It is a cyclic number.

It is not a de Polignac number, because 9121793 - 2¹² = 9117697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9121799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7328 + ... + 8481.

It is an arithmetic number, because the mean of its divisors is an integer number (2284545).

It is a Proth number, since it is equal to 2227 ⋅ 2¹² + 1 and 2227 < 2¹².

Almost surely, 2^9121793 is an apocalyptic number.

It is an amenable number.

9121793 is a deficient number, since it is larger than the sum of its proper divisors (16387).

9121793 is a wasteful number, since it uses less digits than its factorization.

9121793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16386.

The product of its digits is 3402, while the sum is 32.

The square root of 9121793 is about 3020.2306203335. The cubic root of 9121793 is about 208.9424763281.

The spelling of 9121793 in words is "nine million, one hundred twenty-one thousand, seven hundred ninety-three".