3699409 has 4 divisors (see below), whose sum is σ = 4227904. Its totient is φ = 3170916.

The previous prime is 3699407. The next prime is 3699413. The reversal of 3699409 is 9049963.

3699409 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 not a de Polignac number, because 3699409 - 2¹ = 3699407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3699401) 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, 264237 + ... + 264250.

It is an arithmetic number, because the mean of its divisors is an integer number (1056976).

Almost surely, 2^3699409 is an apocalyptic number.

It is an amenable number.

3699409 is a deficient number, since it is larger than the sum of its proper divisors (528495).

3699409 is an equidigital number, since it uses as much as digits as its factorization.

3699409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528494.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 3699409 is about 1923.3847768972. The cubic root of 3699409 is about 154.6598019108.

The spelling of 3699409 in words is "three million, six hundred ninety-nine thousand, four hundred nine".