3528491 has 4 divisors (see below), whose sum is σ = 3534912. Its totient is φ = 3522072.

The previous prime is 3528479. The next prime is 3528521. The reversal of 3528491 is 1948253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1948253 = 587 ⋅3319.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3528491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3528191) 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, 2300 + ... + 3513.

It is an arithmetic number, because the mean of its divisors is an integer number (883728).

Almost surely, 2^3528491 is an apocalyptic number.

3528491 is a deficient number, since it is larger than the sum of its proper divisors (6421).

3528491 is an equidigital number, since it uses as much as digits as its factorization.

3528491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420.

The product of its digits is 8640, while the sum is 32.

The square root of 3528491 is about 1878.4278000498. The cubic root of 3528491 is about 152.2403141119.

The spelling of 3528491 in words is "three million, five hundred twenty-eight thousand, four hundred ninety-one".