7925321 has 2 divisors, whose sum is σ = 7925322. Its totient is φ = 7925320.

The previous prime is 7925279. The next prime is 7925327. The reversal of 7925321 is 1235297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6996025 + 929296 = 2645^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 7925321 - 2⁶ = 7925257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7925327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3962660 + 3962661.

It is an arithmetic number, because the mean of its divisors is an integer number (3962661).

Almost surely, 2^7925321 is an apocalyptic number.

It is an amenable number.

7925321 is a deficient number, since it is larger than the sum of its proper divisors (1).

7925321 is an equidigital number, since it uses as much as digits as its factorization.

7925321 is an odious number, because the sum of its binary digits is odd.

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

The square root of 7925321 is about 2815.1946646724. The cubic root of 7925321 is about 199.3757284526.

The spelling of 7925321 in words is "seven million, nine hundred twenty-five thousand, three hundred twenty-one".