3665393 has 2 divisors, whose sum is σ = 3665394. Its totient is φ = 3665392.

The previous prime is 3665377. The next prime is 3665399. The reversal of 3665393 is 3935663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2930944 + 734449 = 1712^2 + 857^2 .

It is a cyclic number.

It is not a de Polignac number, because 3665393 - 2⁴ = 3665377 is a prime.

It is not a weakly prime, because it can be changed into another prime (3665399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832696 + 1832697.

It is an arithmetic number, because the mean of its divisors is an integer number (1832697).

Almost surely, 2^3665393 is an apocalyptic number.

It is an amenable number.

3665393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665393 is an equidigital number, since it uses as much as digits as its factorization.

3665393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 35.

The square root of 3665393 is about 1914.5216112648. The cubic root of 3665393 is about 154.1843101632.

The spelling of 3665393 in words is "three million, six hundred sixty-five thousand, three hundred ninety-three".