3684149 has 4 divisors (see below), whose sum is σ = 4210464. Its totient is φ = 3157836.

The previous prime is 3684103. The next prime is 3684151. The reversal of 3684149 is 9414863.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3684149 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3684169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263147 + ... + 263160.

It is an arithmetic number, because the mean of its divisors is an integer number (1052616).

Almost surely, 2^3684149 is an apocalyptic number.

It is an amenable number.

3684149 is a deficient number, since it is larger than the sum of its proper divisors (526315).

3684149 is an equidigital number, since it uses as much as digits as its factorization.

3684149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526314.

The product of its digits is 20736, while the sum is 35.

The square root of 3684149 is about 1919.4137125695. The cubic root of 3684149 is about 154.4468524756.

The spelling of 3684149 in words is "three million, six hundred eighty-four thousand, one hundred forty-nine".