3984730 has 8 divisors (see below), whose sum is σ = 7172532. Its totient is φ = 1593888.

The previous prime is 3984679. The next prime is 3984731. The reversal of 3984730 is 374893.

It can be written as a sum of positive squares in 2 ways, for example, as 3932289 + 52441 = 1983^2 + 229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3984731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199227 + ... + 199246.

Almost surely, 2^3984730 is an apocalyptic number.

3984730 is a deficient number, since it is larger than the sum of its proper divisors (3187802).

3984730 is a wasteful number, since it uses less digits than its factorization.

3984730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398480.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3984730 is about 1996.1788497026. The cubic root of 3984730 is about 158.5378508255.

The spelling of 3984730 in words is "three million, nine hundred eighty-four thousand, seven hundred thirty".