3938635 has 16 divisors (see below), whose sum is σ = 5106240. Its totient is φ = 2907520.

The previous prime is 3938633. The next prime is 3938639. The reversal of 3938635 is 5368393.

3938635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3938635 - 2¹ = 3938633 is a prime.

3938635 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3938594 and 3938603.

It is not an unprimeable number, because it can be changed into a prime (3938633) 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 15 ways as a sum of consecutive naturals, for example, 2745 + ... + 3925.

It is an arithmetic number, because the mean of its divisors is an integer number (319140).

Almost surely, 2^3938635 is an apocalyptic number.

3938635 is a deficient number, since it is larger than the sum of its proper divisors (1167605).

3938635 is a wasteful number, since it uses less digits than its factorization.

3938635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

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

The square root of 3938635 is about 1984.5994558097. The cubic root of 3938635 is about 157.9241611148.

The spelling of 3938635 in words is "three million, nine hundred thirty-eight thousand, six hundred thirty-five".