3213236 has 24 divisors (see below), whose sum is σ = 6161064. Its totient is φ = 1457280.

The previous prime is 3213233. The next prime is 3213239. The reversal of 3213236 is 6323123.

It is an interprime number because it is at equal distance from previous prime (3213233) and next prime (3213239).

It can be written as a sum of positive squares in 4 ways, for example, as 672400 + 2540836 = 820^2 + 1594^2 .

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 3² + 2¹⁹ + 1 + 3¹⁰ + 2²¹ + 3¹² + 6⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2666 + ... + 3678.

It is an arithmetic number, because the mean of its divisors is an integer number (256711).

Almost surely, 2^3213236 is an apocalyptic number.

It is an amenable number.

3213236 is a deficient number, since it is larger than the sum of its proper divisors (2947828).

3213236 is a wasteful number, since it uses less digits than its factorization.

3213236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1089 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 3213236 is about 1792.5501387688. The cubic root of 3213236 is about 147.5641547981.

Adding to 3213236 its reverse (6323123), we get a palindrome (9536359).

The spelling of 3213236 in words is "three million, two hundred thirteen thousand, two hundred thirty-six".