7265321 has 4 divisors (see below), whose sum is σ = 8303232. Its totient is φ = 6227412.

The previous prime is 7265317. The next prime is 7265329. The reversal of 7265321 is 1235627.

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: 1235627 = 19 ⋅65033.

It is a cyclic number.

It is not a de Polignac number, because 7265321 - 2² = 7265317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7265329) 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, 518945 + ... + 518958.

It is an arithmetic number, because the mean of its divisors is an integer number (2075808).

Almost surely, 2^7265321 is an apocalyptic number.

It is an amenable number.

7265321 is a deficient number, since it is larger than the sum of its proper divisors (1037911).

7265321 is a wasteful number, since it uses less digits than its factorization.

7265321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037910.

The product of its digits is 2520, while the sum is 26.

The square root of 7265321 is about 2695.4259403664. The cubic root of 7265321 is about 193.6800710526.

The spelling of 7265321 in words is "seven million, two hundred sixty-five thousand, three hundred twenty-one".