3646393 has 2 divisors, whose sum is σ = 3646394. Its totient is φ = 3646392.

The previous prime is 3646369. The next prime is 3646399. The reversal of 3646393 is 3936463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 5929 = 1908^2 + 77^2 .

It is an emirp because it is prime and its reverse (3936463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3646393 - 2⁵ = 3646361 is a prime.

It is not a weakly prime, because it can be changed into another prime (3646399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1823196 + 1823197.

It is an arithmetic number, because the mean of its divisors is an integer number (1823197).

Almost surely, 2^3646393 is an apocalyptic number.

It is an amenable number.

3646393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3646393 is an equidigital number, since it uses as much as digits as its factorization.

3646393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 34.

The square root of 3646393 is about 1909.5530890761. The cubic root of 3646393 is about 153.9174376134.

The spelling of 3646393 in words is "three million, six hundred forty-six thousand, three hundred ninety-three".