3939394 has 8 divisors (see below), whose sum is σ = 6166080. Its totient is φ = 1884036.

The previous prime is 3939379. The next prime is 3939421. The reversal of 3939394 is 4939393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42774 + ... + 42865.

It is an arithmetic number, because the mean of its divisors is an integer number (770760).

Almost surely, 2^3939394 is an apocalyptic number.

3939394 is a deficient number, since it is larger than the sum of its proper divisors (2226686).

3939394 is a wasteful number, since it uses less digits than its factorization.

3939394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85664.

The product of its digits is 78732, while the sum is 40.

The square root of 3939394 is about 1984.7906690631. The cubic root of 3939394 is about 157.9343047931.

Subtracting 3939394 from its reverse (4939393), we obtain a palindrome (999999).

It can be divided in two parts, 3 and 939394, that multiplied together give a palindrome (2818182).

The spelling of 3939394 in words is "three million, nine hundred thirty-nine thousand, three hundred ninety-four".