3817984 has 20 divisors (see below), whose sum is σ = 7629534. Its totient is φ = 1908736.

The previous prime is 3817981. The next prime is 3817987. The reversal of 3817984 is 4897183.

It is an interprime number because it is at equal distance from previous prime (3817981) and next prime (3817987).

It can be written as a sum of positive squares in only one way, i.e., 3504384 + 313600 = 1872^2 + 560^2 .

It is not an unprimeable number, because it can be changed into a prime (3817981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217 + ... + 4240.

Almost surely, 2^3817984 is an apocalyptic number.

It is an amenable number.

3817984 is a deficient number, since it is larger than the sum of its proper divisors (3811550).

3817984 is an frugal number, since it uses more digits than its factorization.

3817984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475 (or 7459 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 3817984 is about 1953.9662228401. The cubic root of 3817984 is about 156.2948619981.

The spelling of 3817984 in words is "three million, eight hundred seventeen thousand, nine hundred eighty-four".