3907689 has 4 divisors (see below), whose sum is σ = 5210256. Its totient is φ = 2605124.

The previous prime is 3907667. The next prime is 3907693. The reversal of 3907689 is 9867093.

It is a happy number.

3907689 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3907689 - 2¹¹ = 3905641 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3907689.

It is not an unprimeable number, because it can be changed into a prime (3907619) 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, 651279 + ... + 651284.

It is an arithmetic number, because the mean of its divisors is an integer number (1302564).

Almost surely, 2^3907689 is an apocalyptic number.

It is an amenable number.

3907689 is a deficient number, since it is larger than the sum of its proper divisors (1302567).

3907689 is a wasteful number, since it uses less digits than its factorization.

3907689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302566.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3907689 is about 1976.7875454889. The cubic root of 3907689 is about 157.5094678108.

The spelling of 3907689 in words is "three million, nine hundred seven thousand, six hundred eighty-nine".