3993224 has 16 divisors (see below), whose sum is σ = 7508700. Its totient is φ = 1990912.

The previous prime is 3993221. The next prime is 3993229. The reversal of 3993224 is 4223993.

It can be written as a sum of positive squares in 2 ways, for example, as 3960100 + 33124 = 1990^2 + 182^2 .

It is a d-powerful number, because it can be written as 3¹¹ + 9 + 9⁵ + 3¹³ + 2³ + 2²¹ + 4⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3993221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4532 + ... + 5340.

Almost surely, 2^3993224 is an apocalyptic number.

It is an amenable number.

3993224 is a deficient number, since it is larger than the sum of its proper divisors (3515476).

3993224 is a wasteful number, since it uses less digits than its factorization.

3993224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1428 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The square root of 3993224 is about 1998.3052819827. The cubic root of 3993224 is about 158.6504192890.

The spelling of 3993224 in words is "three million, nine hundred ninety-three thousand, two hundred twenty-four".