3699909 has 6 divisors (see below), whose sum is σ = 5344326. Its totient is φ = 2466600.

The previous prime is 3699901. The next prime is 3699919. The reversal of 3699909 is 9099963.

3699909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3132900 + 567009 = 1770^2 + 753^2 .

It is not a de Polignac number, because 3699909 - 2³ = 3699901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3699901) 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 5 ways as a sum of consecutive naturals, for example, 205542 + ... + 205559.

It is an arithmetic number, because the mean of its divisors is an integer number (890721).

Almost surely, 2^3699909 is an apocalyptic number.

It is an amenable number.

3699909 is a deficient number, since it is larger than the sum of its proper divisors (1644417).

3699909 is a wasteful number, since it uses less digits than its factorization.

3699909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411107 (or 411104 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 45.

The square root of 3699909 is about 1923.5147516980. The cubic root of 3699909 is about 154.6667693676. Note that the first 3 decimals are identical.

The spelling of 3699909 in words is "three million, six hundred ninety-nine thousand, nine hundred nine".