7253321 has 2 divisors, whose sum is σ = 7253322. Its totient is φ = 7253320.

The previous prime is 7253293. The next prime is 7253329. The reversal of 7253321 is 1233527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4494400 + 2758921 = 2120^2 + 1661^2 .

It is an emirp because it is prime and its reverse (1233527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7253321 - 2¹⁴ = 7236937 is a prime.

It is a super-2 number, since 2×7253321² = 105221331058082, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7⁸ + 2¹⁸ + 5⁴ + 3³ + 3¹¹ + 2²⁰ + 1 .

It is not a weakly prime, because it can be changed into another prime (7253329) 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 as a sum of consecutive naturals, namely, 3626660 + 3626661.

It is an arithmetic number, because the mean of its divisors is an integer number (3626661).

Almost surely, 2^7253321 is an apocalyptic number.

It is an amenable number.

7253321 is a deficient number, since it is larger than the sum of its proper divisors (1).

7253321 is an equidigital number, since it uses as much as digits as its factorization.

7253321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 23.

The square root of 7253321 is about 2693.1990271794. The cubic root of 7253321 is about 193.5733796612.

Adding to 7253321 its reverse (1233527), we get a palindrome (8486848).

The spelling of 7253321 in words is "seven million, two hundred fifty-three thousand, three hundred twenty-one".