7760561 has 2 divisors, whose sum is σ = 7760562. Its totient is φ = 7760560.

The previous prime is 7760507. The next prime is 7760563. The reversal of 7760561 is 1650677.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5640625 + 2119936 = 2375^2 + 1456^2 .

It is a cyclic number.

It is not a de Polignac number, because 7760561 - 2⁶ = 7760497 is a prime.

Together with 7760563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7760563) 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, 3880280 + 3880281.

It is an arithmetic number, because the mean of its divisors is an integer number (3880281).

Almost surely, 2^7760561 is an apocalyptic number.

It is an amenable number.

7760561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7760561 is an equidigital number, since it uses as much as digits as its factorization.

7760561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 7760561 is about 2785.7783472488. The cubic root of 7760561 is about 197.9844306365.

The spelling of 7760561 in words is "seven million, seven hundred sixty thousand, five hundred sixty-one".