7606661 has 2 divisors, whose sum is σ = 7606662. Its totient is φ = 7606660.

The previous prime is 7606619. The next prime is 7606663. The reversal of 7606661 is 1666067.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4330561 + 3276100 = 2081^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 7606661 - 2⁶ = 7606597 is a prime.

It is a super-2 number, since 2×7606661² = 115722583137842, which contains 22 as substring.

Together with 7606663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7606663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3803330 + 3803331.

It is an arithmetic number, because the mean of its divisors is an integer number (3803331).

Almost surely, 2^7606661 is an apocalyptic number.

It is an amenable number.

7606661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7606661 is an equidigital number, since it uses as much as digits as its factorization.

7606661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 7606661 is about 2758.0175851506. The cubic root of 7606661 is about 196.6669370228. Note that the first 3 decimals are identical.

The spelling of 7606661 in words is "seven million, six hundred six thousand, six hundred sixty-one".