7365661 has 2 divisors, whose sum is σ = 7365662. Its totient is φ = 7365660.

The previous prime is 7365649. The next prime is 7365667. The reversal of 7365661 is 1665637.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5433561 + 1932100 = 2331^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 7365661 - 2¹⁷ = 7234589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7365667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3682830 + 3682831.

It is an arithmetic number, because the mean of its divisors is an integer number (3682831).

Almost surely, 2^7365661 is an apocalyptic number.

It is an amenable number.

7365661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7365661 is an equidigital number, since it uses as much as digits as its factorization.

7365661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 7365661 is about 2713.9751288470. The cubic root of 7365661 is about 194.5676240692.

The spelling of 7365661 in words is "seven million, three hundred sixty-five thousand, six hundred sixty-one".