3525643 has 4 divisors (see below), whose sum is σ = 3846168. Its totient is φ = 3205120.

The previous prime is 3525637. The next prime is 3525671. The reversal of 3525643 is 3465253.

3525643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3525643 - 2²¹ = 1428491 is a prime.

It is a Duffinian number.

3525643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3525623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160246 + ... + 160267.

It is an arithmetic number, because the mean of its divisors is an integer number (961542).

Almost surely, 2^3525643 is an apocalyptic number.

3525643 is a deficient number, since it is larger than the sum of its proper divisors (320525).

3525643 is a wasteful number, since it uses less digits than its factorization.

3525643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320524.

The product of its digits is 10800, while the sum is 28.

The square root of 3525643 is about 1877.6695662443. The cubic root of 3525643 is about 152.1993431396.

It can be divided in two parts, 352 and 5643, that added together give a palindrome (5995).

The spelling of 3525643 in words is "three million, five hundred twenty-five thousand, six hundred forty-three".