3938870 has 32 divisors (see below), whose sum is σ = 7832160. Its totient is φ = 1416960.

The previous prime is 3938839. The next prime is 3938897. The reversal of 3938870 is 788393.

3938870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×3938870³ (a number of 21 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4961 + ... + 5699.

It is an arithmetic number, because the mean of its divisors is an integer number (244755).

Almost surely, 2^3938870 is an apocalyptic number.

3938870 is a deficient number, since it is larger than the sum of its proper divisors (3893290).

3938870 is a wasteful number, since it uses less digits than its factorization.

3938870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 3938870 is about 1984.6586608281. The cubic root of 3938870 is about 157.9273019186.

The spelling of 3938870 in words is "three million, nine hundred thirty-eight thousand, eight hundred seventy".