7606561 has 2 divisors, whose sum is σ = 7606562. Its totient is φ = 7606560.

The previous prime is 7606559. The next prime is 7606579. The reversal of 7606561 is 1656067.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7595536 + 11025 = 2756^2 + 105^2 .

It is a cyclic number.

It is not a de Polignac number, because 7606561 - 2¹ = 7606559 is a prime.

Together with 7606559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7606661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3803280 + 3803281.

It is an arithmetic number, because the mean of its divisors is an integer number (3803281).

Almost surely, 2^7606561 is an apocalyptic number.

It is an amenable number.

7606561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7606561 is an equidigital number, since it uses as much as digits as its factorization.

7606561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 7606561 is about 2757.9994561276. Note that the first 3 decimals coincide. The cubic root of 7606561 is about 196.6660752001. Note that the first 3 decimals are identical.

The spelling of 7606561 in words is "seven million, six hundred six thousand, five hundred sixty-one".