3213345 has 32 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 1616384.

The previous prime is 3213283. The next prime is 3213349. The reversal of 3213345 is 5433123.

It is a cyclic number.

It is not a de Polignac number, because 3213345 - 2⁶ = 3213281 is a prime.

It is a d-powerful number, because it can be written as 3⁶ + 2¹⁷ + 1 + 3¹² + 3¹² + 4⁸ + 5⁹ .

3213345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3213349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36061 + ... + 36149.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

Almost surely, 2^3213345 is an apocalyptic number.

It is an amenable number.

3213345 is a deficient number, since it is larger than the sum of its proper divisors (2229855).

3213345 is a wasteful number, since it uses less digits than its factorization.

3213345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its digits is 1080, while the sum is 21.

The square root of 3213345 is about 1792.5805421236. The cubic root of 3213345 is about 147.5658233456.

Adding to 3213345 its reverse (5433123), we get a palindrome (8646468).

The spelling of 3213345 in words is "three million, two hundred thirteen thousand, three hundred forty-five".