7946321 has 2 divisors, whose sum is σ = 7946322. Its totient is φ = 7946320.

The previous prime is 7946303. The next prime is 7946353. The reversal of 7946321 is 1236497.

It is an a-pointer prime, because the next prime (7946353) can be obtained adding 7946321 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7756225 + 190096 = 2785^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 7946321 - 2¹⁴ = 7929937 is a prime.

It is not a weakly prime, because it can be changed into another prime (7946621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3973160 + 3973161.

It is an arithmetic number, because the mean of its divisors is an integer number (3973161).

Almost surely, 2^7946321 is an apocalyptic number.

It is an amenable number.

7946321 is a deficient number, since it is larger than the sum of its proper divisors (1).

7946321 is an equidigital number, since it uses as much as digits as its factorization.

7946321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 7946321 is about 2818.9219570609. The cubic root of 7946321 is about 199.5516707554.

The spelling of 7946321 in words is "seven million, nine hundred forty-six thousand, three hundred twenty-one".