3530491 has 4 divisors (see below), whose sum is σ = 3535000. Its totient is φ = 3525984.

The previous prime is 3530467. The next prime is 3530507. The reversal of 3530491 is 1940353.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1940353 = 647 ⋅2999.

It is a cyclic number.

It is not a de Polignac number, because 3530491 - 2⁹ = 3529979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3530591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741 + ... + 2758.

It is an arithmetic number, because the mean of its divisors is an integer number (883750).

Almost surely, 2^3530491 is an apocalyptic number.

3530491 is a deficient number, since it is larger than the sum of its proper divisors (4509).

3530491 is a wasteful number, since it uses less digits than its factorization.

3530491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 3530491 is about 1878.9600847277. The cubic root of 3530491 is about 152.2690726868.

The spelling of 3530491 in words is "three million, five hundred thirty thousand, four hundred ninety-one".