3532421 has 4 divisors (see below), whose sum is σ = 3540000. Its totient is φ = 3524844.

The previous prime is 3532393. The next prime is 3532429. The reversal of 3532421 is 1242353.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 3532421 - 2¹⁸ = 3270277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3532393 and 3532402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3532429) 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, 3041 + ... + 4038.

It is an arithmetic number, because the mean of its divisors is an integer number (885000).

Almost surely, 2^3532421 is an apocalyptic number.

It is an amenable number.

3532421 is a deficient number, since it is larger than the sum of its proper divisors (7579).

3532421 is an equidigital number, since it uses as much as digits as its factorization.

3532421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7578.

The product of its digits is 720, while the sum is 20.

The square root of 3532421 is about 1879.4735965158. The cubic root of 3532421 is about 152.2968144160.

Adding to 3532421 its reverse (1242353), we get a palindrome (4774774).

The spelling of 3532421 in words is "three million, five hundred thirty-two thousand, four hundred twenty-one".