3939907 has 2 divisors, whose sum is σ = 3939908. Its totient is φ = 3939906.

The previous prime is 3939899. The next prime is 3939917. The reversal of 3939907 is 7099393.

It is a happy number.

3939907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3939907 - 2³ = 3939899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3939907.

It is not a weakly prime, because it can be changed into another prime (3939917) 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 as a sum of consecutive naturals, namely, 1969953 + 1969954.

It is an arithmetic number, because the mean of its divisors is an integer number (1969954).

Almost surely, 2^3939907 is an apocalyptic number.

3939907 is a deficient number, since it is larger than the sum of its proper divisors (1).

3939907 is an equidigital number, since it uses as much as digits as its factorization.

3939907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 3939907 is about 1984.9198976281. The cubic root of 3939907 is about 157.9411600592.

The spelling of 3939907 in words is "three million, nine hundred thirty-nine thousand, nine hundred seven".