9725321 has 4 divisors (see below), whose sum is σ = 10237200. Its totient is φ = 9213444.

The previous prime is 9725273. The next prime is 9725327. The reversal of 9725321 is 1235279.

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.

It is a cyclic number.

It is not a de Polignac number, because 9725321 - 2⁶ = 9725257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9725327) 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, 255911 + ... + 255948.

It is an arithmetic number, because the mean of its divisors is an integer number (2559300).

Almost surely, 2^9725321 is an apocalyptic number.

It is an amenable number.

9725321 is a deficient number, since it is larger than the sum of its proper divisors (511879).

9725321 is a wasteful number, since it uses less digits than its factorization.

9725321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511878.

The product of its digits is 3780, while the sum is 29.

The square root of 9725321 is about 3118.5446926411. The cubic root of 9725321 is about 213.4525340240.

The spelling of 9725321 in words is "nine million, seven hundred twenty-five thousand, three hundred twenty-one".