3563993 has 2 divisors, whose sum is σ = 3563994. Its totient is φ = 3563992.

The previous prime is 3563983. The next prime is 3564017. The reversal of 3563993 is 3993653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2155024 + 1408969 = 1468^2 + 1187^2 .

It is an emirp because it is prime and its reverse (3993653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3563993 - 2⁶ = 3563929 is a prime.

It is a super-2 number, since 2×3563993² = 25404092208098, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3563953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1781996 + 1781997.

It is an arithmetic number, because the mean of its divisors is an integer number (1781997).

Almost surely, 2^3563993 is an apocalyptic number.

It is an amenable number.

3563993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3563993 is an equidigital number, since it uses as much as digits as its factorization.

3563993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65610, while the sum is 38.

The square root of 3563993 is about 1887.8540727503. The cubic root of 3563993 is about 152.7492010855.

The spelling of 3563993 in words is "three million, five hundred sixty-three thousand, nine hundred ninety-three".