3564421 has 4 divisors (see below), whose sum is σ = 4073632. Its totient is φ = 3055212.

The previous prime is 3564397. The next prime is 3564437. The reversal of 3564421 is 1244653.

3564421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1244653 = 359 ⋅3467.

It is a cyclic number.

It is not a de Polignac number, because 3564421 - 2⁵ = 3564389 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 (3564461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254595 + ... + 254608.

It is an arithmetic number, because the mean of its divisors is an integer number (1018408).

Almost surely, 2^3564421 is an apocalyptic number.

It is an amenable number.

3564421 is a deficient number, since it is larger than the sum of its proper divisors (509211).

3564421 is an equidigital number, since it uses as much as digits as its factorization.

3564421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509210.

The product of its digits is 2880, while the sum is 25.

The square root of 3564421 is about 1887.9674255664. The cubic root of 3564421 is about 152.7553153924.

The spelling of 3564421 in words is "three million, five hundred sixty-four thousand, four hundred twenty-one".