3533645 has 4 divisors (see below), whose sum is σ = 4240380. Its totient is φ = 2826912.

The previous prime is 3533633. The next prime is 3533653. The reversal of 3533645 is 5463353.

It is a happy number.

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 481636 + 3052009 = 694^2 + 1747^2 .

It is a cyclic number.

It is not a de Polignac number, because 3533645 - 2⁶ = 3533581 is a prime.

It is a super-3 number, since 3×3533645³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 3⁴ + 5³ + 3⁴ + 3¹² + 6³ + 4¹⁰ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353360 + ... + 353369.

It is an arithmetic number, because the mean of its divisors is an integer number (1060095).

Almost surely, 2^3533645 is an apocalyptic number.

It is an amenable number.

3533645 is a deficient number, since it is larger than the sum of its proper divisors (706735).

3533645 is an equidigital number, since it uses as much as digits as its factorization.

3533645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706734.

The product of its digits is 16200, while the sum is 29.

The square root of 3533645 is about 1879.7991914032. The cubic root of 3533645 is about 152.3144028984.

Adding to 3533645 its reverse (5463353), we get a palindrome (8996998).

The spelling of 3533645 in words is "three million, five hundred thirty-three thousand, six hundred forty-five".