7973489 has 2 divisors, whose sum is σ = 7973490. Its totient is φ = 7973488.

The previous prime is 7973477. The next prime is 7973509. The reversal of 7973489 is 9843797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5841889 + 2131600 = 2417^2 + 1460^2 .

It is an emirp because it is prime and its reverse (9843797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7973489 - 2⁴ = 7973473 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (7973419) 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, 3986744 + 3986745.

It is an arithmetic number, because the mean of its divisors is an integer number (3986745).

Almost surely, 2^7973489 is an apocalyptic number.

It is an amenable number.

7973489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7973489 is an equidigital number, since it uses as much as digits as its factorization.

7973489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 7973489 is about 2823.7367086894. The cubic root of 7973489 is about 199.7788305104.

The spelling of 7973489 in words is "seven million, nine hundred seventy-three thousand, four hundred eighty-nine".