9365921 has 4 divisors (see below), whose sum is σ = 9619092. Its totient is φ = 9112752.

The previous prime is 9365903. The next prime is 9365947. The reversal of 9365921 is 1295639.

9365921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7349521 + 2016400 = 2711^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 9365921 - 2¹⁴ = 9349537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9365021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126530 + ... + 126603.

It is an arithmetic number, because the mean of its divisors is an integer number (2404773).

Almost surely, 2^9365921 is an apocalyptic number.

It is an amenable number.

9365921 is a deficient number, since it is larger than the sum of its proper divisors (253171).

9365921 is a wasteful number, since it uses less digits than its factorization.

9365921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253170.

The product of its digits is 14580, while the sum is 35.

The square root of 9365921 is about 3060.3792248674. The cubic root of 9365921 is about 210.7900774506.

The spelling of 9365921 in words is "nine million, three hundred sixty-five thousand, nine hundred twenty-one".