3984738 has 8 divisors (see below), whose sum is σ = 7969488. Its totient is φ = 1328244.

The previous prime is 3984731. The next prime is 3984751. The reversal of 3984738 is 8374893.

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

3984738 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 3984738.

It is not an unprimeable number, because it can be changed into a prime (3984731) 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, 332056 + ... + 332067.

It is an arithmetic number, because the mean of its divisors is an integer number (996186).

Almost surely, 2^3984738 is an apocalyptic number.

3984738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3984738 is a wasteful number, since it uses less digits than its factorization.

3984738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664128.

The product of its digits is 145152, while the sum is 42.

The square root of 3984738 is about 1996.1808535301. The cubic root of 3984738 is about 158.5379569224.

The spelling of 3984738 in words is "three million, nine hundred eighty-four thousand, seven hundred thirty-eight".