3623563 has 4 divisors (see below), whose sum is σ = 3633408. Its totient is φ = 3613720.

The previous prime is 3623537. The next prime is 3623569. The reversal of 3623563 is 3653263.

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

It is a cyclic number.

It is not a de Polignac number, because 3623563 - 2²¹ = 1526411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3623569) 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, 4348 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (908352).

Almost surely, 2^3623563 is an apocalyptic number.

3623563 is a deficient number, since it is larger than the sum of its proper divisors (9845).

3623563 is an equidigital number, since it uses as much as digits as its factorization.

3623563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9844.

The product of its digits is 9720, while the sum is 28.

The square root of 3623563 is about 1903.5658643714. The cubic root of 3623563 is about 153.5955401221.

It can be divided in two parts, 3623 and 563, that added together give a triangular number (4186 = T₉₁).

The spelling of 3623563 in words is "three million, six hundred twenty-three thousand, five hundred sixty-three".