3938798 has 32 divisors (see below), whose sum is σ = 6697728. Its totient is φ = 1728000.

The previous prime is 3938791. The next prime is 3938821. The reversal of 3938798 is 8978393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938791) 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 15 ways as a sum of consecutive naturals, for example, 38948 + ... + 39048.

It is an arithmetic number, because the mean of its divisors is an integer number (209304).

Almost surely, 2^3938798 is an apocalyptic number.

3938798 is a deficient number, since it is larger than the sum of its proper divisors (2758930).

3938798 is a wasteful number, since it uses less digits than its factorization.

3938798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its digits is 326592, while the sum is 47.

The square root of 3938798 is about 1984.6405216059. The cubic root of 3938798 is about 157.9263396431.

The spelling of 3938798 in words is "three million, nine hundred thirty-eight thousand, seven hundred ninety-eight".