3698009 has 16 divisors (see below), whose sum is σ = 4472832. Its totient is φ = 2989008.

The previous prime is 3697997. The next prime is 3698029. The reversal of 3698009 is 9008963.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3698009 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3698009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3698029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16472 + ... + 16694.

It is an arithmetic number, because the mean of its divisors is an integer number (279552).

Almost surely, 2^3698009 is an apocalyptic number.

It is an amenable number.

3698009 is a deficient number, since it is larger than the sum of its proper divisors (774823).

3698009 is a wasteful number, since it uses less digits than its factorization.

3698009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 3698009 is about 1923.0208007195. The cubic root of 3698009 is about 154.6402896912.

The spelling of 3698009 in words is "three million, six hundred ninety-eight thousand, nine".