3938007 has 4 divisors (see below), whose sum is σ = 5250680. Its totient is φ = 2625336.

The previous prime is 3937993. The next prime is 3938029. The reversal of 3938007 is 7008393.

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

It is not a de Polignac number, because 3938007 - 2⁶ = 3937943 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656332 + ... + 656337.

It is an arithmetic number, because the mean of its divisors is an integer number (1312670).

Almost surely, 2^3938007 is an apocalyptic number.

3938007 is a deficient number, since it is larger than the sum of its proper divisors (1312673).

3938007 is a wasteful number, since it uses less digits than its factorization.

3938007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312672.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 3938007 is about 1984.4412311782. The cubic root of 3938007 is about 157.9157672046.

The spelling of 3938007 in words is "three million, nine hundred thirty-eight thousand, seven".