3528921 has 8 divisors (see below), whose sum is σ = 5133024. Its totient is φ = 2138720.

The previous prime is 3528907. The next prime is 3528961. The reversal of 3528921 is 1298253.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3528921 - 2⁶ = 3528857 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3528961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53436 + ... + 53501.

It is an arithmetic number, because the mean of its divisors is an integer number (641628).

Almost surely, 2^3528921 is an apocalyptic number.

It is an amenable number.

3528921 is a deficient number, since it is larger than the sum of its proper divisors (1604103).

3528921 is a wasteful number, since it uses less digits than its factorization.

3528921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106951.

The product of its digits is 4320, while the sum is 30.

The square root of 3528921 is about 1878.5422539831. The cubic root of 3528921 is about 152.2464981224.

The spelling of 3528921 in words is "three million, five hundred twenty-eight thousand, nine hundred twenty-one".