3569421 has 4 divisors (see below), whose sum is σ = 4759232. Its totient is φ = 2379612.

The previous prime is 3569411. The next prime is 3569429. The reversal of 3569421 is 1249653.

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 not a de Polignac number, because 3569421 - 2⁵ = 3569389 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3569429) 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 3 ways as a sum of consecutive naturals, for example, 594901 + ... + 594906.

It is an arithmetic number, because the mean of its divisors is an integer number (1189808).

Almost surely, 2^3569421 is an apocalyptic number.

It is an amenable number.

3569421 is a deficient number, since it is larger than the sum of its proper divisors (1189811).

3569421 is a wasteful number, since it uses less digits than its factorization.

3569421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189810.

The product of its digits is 6480, while the sum is 30.

The square root of 3569421 is about 1889.2911369082. The cubic root of 3569421 is about 152.8267079809.

The spelling of 3569421 in words is "three million, five hundred sixty-nine thousand, four hundred twenty-one".