3523 has 4 divisors (see below), whose sum is σ = 3808. Its totient is φ = 3240.

The previous prime is 3517. The next prime is 3527. The reversal of 3523 is 3253.

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 3523 - 2⁵ = 3491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 271 = 3523 / (3 + 5 + 2 + 3).

It is a d-powerful number, because it can be written as 3³ + 2⁷ + 5⁵ + 3⁵ .

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (3527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123 + ... + 148.

It is an arithmetic number, because the mean of its divisors is an integer number (952).

2³⁵²³ is an apocalyptic number.

3523 is a deficient number, since it is larger than the sum of its proper divisors (285).

3523 is a wasteful number, since it uses less digits than its factorization.

3523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284.

The product of its digits is 90, while the sum is 13.

The square root of 3523 is about 59.3548650070. The cubic root of 3523 is about 15.2161301528.

Adding to 3523 its reverse (3253), we get a palindrome (6776).

The spelling of 3523 in words is "three thousand, five hundred twenty-three".