3987224 has 8 divisors (see below), whose sum is σ = 7476060. Its totient is φ = 1993608.

The previous prime is 3987199. The next prime is 3987227. The reversal of 3987224 is 4227893.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249194 + ... + 249209.

Almost surely, 2^3987224 is an apocalyptic number.

It is an amenable number.

3987224 is a deficient number, since it is larger than the sum of its proper divisors (3488836).

3987224 is a wasteful number, since it uses less digits than its factorization.

3987224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498409 (or 498405 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 3987224 is about 1996.8034455098. The cubic root of 3987224 is about 158.5709196439.

The spelling of 3987224 in words is "three million, nine hundred eighty-seven thousand, two hundred twenty-four".