3213284 has 24 divisors (see below), whose sum is σ = 5987520. Its totient is φ = 1505504.

The previous prime is 3213283. The next prime is 3213349. The reversal of 3213284 is 4823123.

3213284 = T₅₇ + T₅₈ + ... + T₂₆₈.

It is a super-3 number, since 3×3213284³ = 99533342654562270912, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (3213281) 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, 4547 + ... + 5205.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

Almost surely, 2^3213284 is an apocalyptic number.

It is an amenable number.

3213284 is a deficient number, since it is larger than the sum of its proper divisors (2774236).

3213284 is a wasteful number, since it uses less digits than its factorization.

3213284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 737 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 3213284 is about 1792.5635274656. The cubic root of 3213284 is about 147.5648895760.

The spelling of 3213284 in words is "three million, two hundred thirteen thousand, two hundred eighty-four".