3699009 has 6 divisors (see below), whose sum is σ = 5343026. Its totient is φ = 2466000.

The previous prime is 3698999. The next prime is 3699011. The reversal of 3699009 is 9009963.

It can be written as a sum of positive squares in only one way, i.e., 2259009 + 1440000 = 1503^2 + 1200^2 .

It is not a de Polignac number, because 3699009 - 2⁷ = 3698881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3699049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205492 + ... + 205509.

Almost surely, 2^3699009 is an apocalyptic number.

It is an amenable number.

3699009 is a deficient number, since it is larger than the sum of its proper divisors (1644017).

3699009 is a wasteful number, since it uses less digits than its factorization.

3699009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411007 (or 411004 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 3699009 is about 1923.2807907323. The cubic root of 3699009 is about 154.6542274933.

The spelling of 3699009 in words is "three million, six hundred ninety-nine thousand, nine".