3938738 has 8 divisors (see below), whose sum is σ = 6219120. Its totient is φ = 1865700.

The previous prime is 3938731. The next prime is 3938743. The reversal of 3938738 is 8378393.

3938738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 3938695 and 3938704.

It is not an unprimeable number, because it can be changed into a prime (3938731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51788 + ... + 51863.

It is an arithmetic number, because the mean of its divisors is an integer number (777390).

Almost surely, 2^3938738 is an apocalyptic number.

3938738 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3938738 is a deficient number, since it is larger than the sum of its proper divisors (2280382).

3938738 is a wasteful number, since it uses less digits than its factorization.

3938738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103672.

The product of its digits is 108864, while the sum is 41.

The square root of 3938738 is about 1984.6254054607. The cubic root of 3938738 is about 157.9255377378.

The spelling of 3938738 in words is "three million, nine hundred thirty-eight thousand, seven hundred thirty-eight".