3935638 has 8 divisors (see below), whose sum is σ = 6746832. Its totient is φ = 1686696.

The previous prime is 3935629. The next prime is 3935651. The reversal of 3935638 is 8365393.

3935638 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 = 3935597 and 3935606.

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 3 ways as a sum of consecutive naturals, for example, 140545 + ... + 140572.

It is an arithmetic number, because the mean of its divisors is an integer number (843354).

Almost surely, 2^3935638 is an apocalyptic number.

3935638 is a deficient number, since it is larger than the sum of its proper divisors (2811194).

3935638 is a wasteful number, since it uses less digits than its factorization.

3935638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281126.

The product of its digits is 58320, while the sum is 37.

The square root of 3935638 is about 1983.8442479187. The cubic root of 3935638 is about 157.8840948812.

The spelling of 3935638 in words is "three million, nine hundred thirty-five thousand, six hundred thirty-eight".