7975559 has 2 divisors, whose sum is σ = 7975560. Its totient is φ = 7975558.

The previous prime is 7975543. The next prime is 7975577. The reversal of 7975559 is 9555797.

It is a weak prime.

It is an emirp because it is prime and its reverse (9555797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7975559 - 2⁴ = 7975543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7975519) 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, 3987779 + 3987780.

It is an arithmetic number, because the mean of its divisors is an integer number (3987780).

Almost surely, 2^7975559 is an apocalyptic number.

7975559 is a deficient number, since it is larger than the sum of its proper divisors (1).

7975559 is an equidigital number, since it uses as much as digits as its factorization.

7975559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 496125, while the sum is 47.

The square root of 7975559 is about 2824.1032204932. The cubic root of 7975559 is about 199.7961172297.

The spelling of 7975559 in words is "seven million, nine hundred seventy-five thousand, five hundred fifty-nine".