3523643 has 4 divisors (see below), whose sum is σ = 3556080. Its totient is φ = 3491208.

The previous prime is 3523627. The next prime is 3523649. The reversal of 3523643 is 3463253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3463253 = 331 ⋅10463.

It is a cyclic number.

It is not a de Polignac number, because 3523643 - 2⁴ = 3523627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3523649) 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, 16055 + ... + 16272.

It is an arithmetic number, because the mean of its divisors is an integer number (889020).

Almost surely, 2^3523643 is an apocalyptic number.

3523643 is a deficient number, since it is larger than the sum of its proper divisors (32437).

3523643 is a wasteful number, since it uses less digits than its factorization.

3523643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32436.

The product of its digits is 6480, while the sum is 26.

The square root of 3523643 is about 1877.1369156244. The cubic root of 3523643 is about 152.1705581999.

Adding to 3523643 its reverse (3463253), we get a palindrome (6986896).

The spelling of 3523643 in words is "three million, five hundred twenty-three thousand, six hundred forty-three".