3684709 has 4 divisors (see below), whose sum is σ = 4211104. Its totient is φ = 3158316.

The previous prime is 3684701. The next prime is 3684721. The reversal of 3684709 is 9074863.

3684709 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, and also an emirpimes, since its reverse is a distinct semiprime: 9074863 = 7 ⋅1296409.

It is not a de Polignac number, because 3684709 - 2³ = 3684701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3684701) 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, 263187 + ... + 263200.

It is an arithmetic number, because the mean of its divisors is an integer number (1052776).

Almost surely, 2^3684709 is an apocalyptic number.

It is an amenable number.

3684709 is a deficient number, since it is larger than the sum of its proper divisors (526395).

3684709 is an equidigital number, since it uses as much as digits as its factorization.

3684709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526394.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 3684709 is about 1919.5595849048. The cubic root of 3684709 is about 154.4546775171.

The spelling of 3684709 in words is "three million, six hundred eighty-four thousand, seven hundred nine".