3653623 has 8 divisors (see below), whose sum is σ = 4002480. Its totient is φ = 3319680.

The previous prime is 3653603. The next prime is 3653647. The reversal of 3653623 is 3263563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3653623 - 2¹⁷ = 3522551 is a prime.

It is a super-2 number, since 2×3653623² = 26697922052258, which contains 22 as substring.

3653623 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3653591 and 3653600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3653603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3213 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (500310).

Almost surely, 2^3653623 is an apocalyptic number.

3653623 is a deficient number, since it is larger than the sum of its proper divisors (348857).

3653623 is a wasteful number, since it uses less digits than its factorization.

3653623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7457.

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

The square root of 3653623 is about 1911.4452647146. The cubic root of 3653623 is about 154.0190986602.

The spelling of 3653623 in words is "three million, six hundred fifty-three thousand, six hundred twenty-three".