7875697 has 2 divisors, whose sum is σ = 7875698. Its totient is φ = 7875696.

The previous prime is 7875667. The next prime is 7875701. The reversal of 7875697 is 7965787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7817616 + 58081 = 2796^2 + 241^2 .

It is an emirp because it is prime and its reverse (7965787) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7875697 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7875697.

It is not a weakly prime, because it can be changed into another prime (7875667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3937848 + 3937849.

It is an arithmetic number, because the mean of its divisors is an integer number (3937849).

Almost surely, 2^7875697 is an apocalyptic number.

It is an amenable number.

7875697 is a deficient number, since it is larger than the sum of its proper divisors (1).

7875697 is an equidigital number, since it uses as much as digits as its factorization.

7875697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 740880, while the sum is 49.

The square root of 7875697 is about 2806.3672247231. The cubic root of 7875697 is about 198.9587298574.

The spelling of 7875697 in words is "seven million, eight hundred seventy-five thousand, six hundred ninety-seven".