7345661 has 2 divisors, whose sum is σ = 7345662. Its totient is φ = 7345660.

The previous prime is 7345631. The next prime is 7345699. The reversal of 7345661 is 1665437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7236100 + 109561 = 2690^2 + 331^2 .

It is an emirp because it is prime and its reverse (1665437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7345661 - 2¹⁰ = 7344637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7345631) 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, 3672830 + 3672831.

It is an arithmetic number, because the mean of its divisors is an integer number (3672831).

Almost surely, 2^7345661 is an apocalyptic number.

It is an amenable number.

7345661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7345661 is an equidigital number, since it uses as much as digits as its factorization.

7345661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 7345661 is about 2710.2879920776. The cubic root of 7345661 is about 194.3913610984.

The spelling of 7345661 in words is "seven million, three hundred forty-five thousand, six hundred sixty-one".