3563863 has 4 divisors (see below), whose sum is σ = 3773520. Its totient is φ = 3354208.

The previous prime is 3563851. The next prime is 3563867. The reversal of 3563863 is 3683653.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3683653 = 73 ⋅50461.

It is a cyclic number.

It is not a de Polignac number, because 3563863 - 2⁵ = 3563831 is a prime.

It is a super-2 number, since 2×3563863² = 25402238965538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3563867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104803 + ... + 104836.

It is an arithmetic number, because the mean of its divisors is an integer number (943380).

Almost surely, 2^3563863 is an apocalyptic number.

3563863 is a deficient number, since it is larger than the sum of its proper divisors (209657).

3563863 is a wasteful number, since it uses less digits than its factorization.

3563863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209656.

The product of its digits is 38880, while the sum is 34.

The square root of 3563863 is about 1887.8196418090. The cubic root of 3563863 is about 152.7473438393.

The spelling of 3563863 in words is "three million, five hundred sixty-three thousand, eight hundred sixty-three".