3213408 has 96 divisors (see below), whose sum is σ = 9797760. Its totient is φ = 911360.

The previous prime is 3213401. The next prime is 3213421. The reversal of 3213408 is 8043123.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17863 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

Almost surely, 2^3213408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4898880).

3213408 is an abundant number, since it is smaller than the sum of its proper divisors (6584352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213408 is a wasteful number, since it uses less digits than its factorization.

3213408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3213408 is about 1792.5981144696. The cubic root of 3213408 is about 147.5667877183.

The spelling of 3213408 in words is "three million, two hundred thirteen thousand, four hundred eight".