3953939 has 4 divisors (see below), whose sum is σ = 4313400. Its totient is φ = 3594480.

The previous prime is 3953927. The next prime is 3953993. The reversal of 3953939 is 9393593.

3953939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3953939 - 2⁴ = 3953923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3953896 and 3953905.

It is not an unprimeable number, because it can be changed into a prime (3953909) 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, 179714 + ... + 179735.

It is an arithmetic number, because the mean of its divisors is an integer number (1078350).

Almost surely, 2^3953939 is an apocalyptic number.

3953939 is a deficient number, since it is larger than the sum of its proper divisors (359461).

3953939 is a wasteful number, since it uses less digits than its factorization.

3953939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359460.

The product of its digits is 98415, while the sum is 41.

The square root of 3953939 is about 1988.4514075028. The cubic root of 3953939 is about 158.1284406652.

It can be divided in two parts, 395 and 3939, that added together give a palindrome (4334).

The spelling of 3953939 in words is "three million, nine hundred fifty-three thousand, nine hundred thirty-nine".