3528421 has 8 divisors (see below), whose sum is σ = 3857504. Its totient is φ = 3207600.

The previous prime is 3528409. The next prime is 3528463. The reversal of 3528421 is 1248253.

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 3528421 - 2⁷ = 3528293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3528521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155 + ... + 2896.

It is an arithmetic number, because the mean of its divisors is an integer number (482188).

Almost surely, 2^3528421 is an apocalyptic number.

3528421 is the 1085-th hex number.

It is an amenable number.

3528421 is a deficient number, since it is larger than the sum of its proper divisors (329083).

3528421 is a wasteful number, since it uses less digits than its factorization.

3528421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131.

The product of its digits is 1920, while the sum is 25.

The square root of 3528421 is about 1878.4091673541. The cubic root of 3528421 is about 152.2393073650.

The spelling of 3528421 in words is "three million, five hundred twenty-eight thousand, four hundred twenty-one".