9275921 has 4 divisors (see below), whose sum is σ = 9433200. Its totient is φ = 9118644.

The previous prime is 9275879. The next prime is 9275939. The reversal of 9275921 is 1295729.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1295729 = 101 ⋅12829.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9275921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9275951) 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, 78551 + ... + 78668.

It is an arithmetic number, because the mean of its divisors is an integer number (2358300).

Almost surely, 2^9275921 is an apocalyptic number.

It is an amenable number.

9275921 is a deficient number, since it is larger than the sum of its proper divisors (157279).

9275921 is a wasteful number, since it uses less digits than its factorization.

9275921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157278.

The product of its digits is 11340, while the sum is 35.

The square root of 9275921 is about 3045.6396700857. The cubic root of 9275921 is about 210.1127210413.

The spelling of 9275921 in words is "nine million, two hundred seventy-five thousand, nine hundred twenty-one".