3984723 has 6 divisors (see below), whose sum is σ = 5755724. Its totient is φ = 2656476.

The previous prime is 3984679. The next prime is 3984731. The reversal of 3984723 is 3274893.

It is not a de Polignac number, because 3984723 - 2⁸ = 3984467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3984793) 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 5 ways as a sum of consecutive naturals, for example, 221365 + ... + 221382.

Almost surely, 2^3984723 is an apocalyptic number.

3984723 is a deficient number, since it is larger than the sum of its proper divisors (1771001).

3984723 is a wasteful number, since it uses less digits than its factorization.

3984723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442753 (or 442750 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3984723 is about 1996.1770963519. The cubic root of 3984723 is about 158.5377579907.

The spelling of 3984723 in words is "three million, nine hundred eighty-four thousand, seven hundred twenty-three".