3532521 has 4 divisors (see below), whose sum is σ = 4710032. Its totient is φ = 2355012.

The previous prime is 3532517. The next prime is 3532523. The reversal of 3532521 is 1252353.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1252353 = 3 ⋅417451.

It is not a de Polignac number, because 3532521 - 2² = 3532517 is a prime.

It is a D-number.

It is the 1880-th Hogben number.

It is a Duffinian number.

3532521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3532523) by changing a digit.

It is a nontrivial repunit in base 1879.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588751 + ... + 588756.

It is an arithmetic number, because the mean of its divisors is an integer number (1177508).

Almost surely, 2^3532521 is an apocalyptic number.

It is an amenable number.

3532521 is a deficient number, since it is larger than the sum of its proper divisors (1177511).

3532521 is a wasteful number, since it uses less digits than its factorization.

3532521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177510.

The product of its digits is 900, while the sum is 21.

The square root of 3532521 is about 1879.5001995211. The cubic root of 3532521 is about 152.2982515359.

Adding to 3532521 its reverse (1252353), we get a palindrome (4784874).

The spelling of 3532521 in words is "three million, five hundred thirty-two thousand, five hundred twenty-one".