3563381 has 4 divisors (see below), whose sum is σ = 3598764. Its totient is φ = 3528000.

The previous prime is 3563377. The next prime is 3563383. The reversal of 3563381 is 1833653.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2220100 + 1343281 = 1490^2 + 1159^2 .

It is a cyclic number.

It is not a de Polignac number, because 3563381 - 2² = 3563377 is a prime.

It is a super-2 number, since 2×3563381² = 25395368302322, 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 (3563383) 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, 17540 + ... + 17741.

It is an arithmetic number, because the mean of its divisors is an integer number (899691).

Almost surely, 2^3563381 is an apocalyptic number.

It is an amenable number.

3563381 is a deficient number, since it is larger than the sum of its proper divisors (35383).

3563381 is a wasteful number, since it uses less digits than its factorization.

3563381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35382.

The product of its digits is 6480, while the sum is 29.

The square root of 3563381 is about 1887.6919769920. The cubic root of 3563381 is about 152.7404573476.

The spelling of 3563381 in words is "three million, five hundred sixty-three thousand, three hundred eighty-one".