3213409 has 4 divisors (see below), whose sum is σ = 3222720. Its totient is φ = 3204100.

The previous prime is 3213401. The next prime is 3213421. The reversal of 3213409 is 9043123.

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 a cyclic number.

It is not a de Polignac number, because 3213409 - 2³ = 3213401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3213409.

It is not an unprimeable number, because it can be changed into a prime (3213401) 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, 4117 + ... + 4834.

It is an arithmetic number, because the mean of its divisors is an integer number (805680).

Almost surely, 2^3213409 is an apocalyptic number.

It is an amenable number.

3213409 is a deficient number, since it is larger than the sum of its proper divisors (9311).

3213409 is an equidigital number, since it uses as much as digits as its factorization.

3213409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9310.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3213409 is about 1792.5983933943. The cubic root of 3213409 is about 147.5668030257.

The spelling of 3213409 in words is "three million, two hundred thirteen thousand, four hundred nine".