3213889 has 4 divisors (see below), whose sum is σ = 3673024. Its totient is φ = 2754756.

The previous prime is 3213887. The next prime is 3213893. The reversal of 3213889 is 9883123.

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: 9883123 = 23 ⋅429701.

It is a cyclic number.

It is not a de Polignac number, because 3213889 - 2¹ = 3213887 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3213887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229557 + ... + 229570.

It is an arithmetic number, because the mean of its divisors is an integer number (918256).

Almost surely, 2^3213889 is an apocalyptic number.

It is an amenable number.

3213889 is a deficient number, since it is larger than the sum of its proper divisors (459135).

3213889 is an equidigital number, since it uses as much as digits as its factorization.

3213889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459134.

The product of its digits is 10368, while the sum is 34.

The square root of 3213889 is about 1792.7322722593. The cubic root of 3213889 is about 147.5741502115.

The spelling of 3213889 in words is "three million, two hundred thirteen thousand, eight hundred eighty-nine".