3997144 has 16 divisors (see below), whose sum is σ = 7889400. Its totient is φ = 1893312.

The previous prime is 3997141. The next prime is 3997181. The reversal of 3997144 is 4417993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997141) 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, 12997 + ... + 13300.

Almost surely, 2^3997144 is an apocalyptic number.

It is an amenable number.

3997144 is a deficient number, since it is larger than the sum of its proper divisors (3892256).

3997144 is a wasteful number, since it uses less digits than its factorization.

3997144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26322 (or 26318 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 3997144 is about 1999.2858725055. The cubic root of 3997144 is about 158.7023160565.

The spelling of 3997144 in words is "three million, nine hundred ninety-seven thousand, one hundred forty-four".