3944507 has 4 divisors (see below), whose sum is σ = 4508016. Its totient is φ = 3381000.

The previous prime is 3944503. The next prime is 3944509. The reversal of 3944507 is 7054493.

3944507 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 not a de Polignac number, because 3944507 - 2² = 3944503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3944503) 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, 281744 + ... + 281757.

It is an arithmetic number, because the mean of its divisors is an integer number (1127004).

Almost surely, 2^3944507 is an apocalyptic number.

3944507 is a deficient number, since it is larger than the sum of its proper divisors (563509).

3944507 is an equidigital number, since it uses as much as digits as its factorization.

3944507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563508.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 3944507 is about 1986.0782965432. The cubic root of 3944507 is about 158.0026037065.

The spelling of 3944507 in words is "three million, nine hundred forty-four thousand, five hundred seven".