3977224 has 8 divisors (see below), whose sum is σ = 7457310. Its totient is φ = 1988608.

The previous prime is 3977219. The next prime is 3977243. The reversal of 3977224 is 4227793.

It can be written as a sum of positive squares in only one way, i.e., 3802500 + 174724 = 1950^2 + 418^2 .

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

It is a d-powerful number, because it can be written as 3¹² + 9³ + 7 + 7⁷ + 2¹⁹ + 2²¹ + 4³ .

It is a self number, because there is not a number n which added to its sum of digits gives 3977224.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248569 + ... + 248584.

Almost surely, 2^3977224 is an apocalyptic number.

It is an amenable number.

3977224 is a deficient number, since it is larger than the sum of its proper divisors (3480086).

3977224 is a wasteful number, since it uses less digits than its factorization.

3977224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497159 (or 497155 counting only the distinct ones).

The product of its digits is 21168, while the sum is 34.

The square root of 3977224 is about 1994.2978714324. The cubic root of 3977224 is about 158.4382428153.

The spelling of 3977224 in words is "three million, nine hundred seventy-seven thousand, two hundred twenty-four".