3828309 has 4 divisors (see below), whose sum is σ = 5104416. Its totient is φ = 2552204.

The previous prime is 3828287. The next prime is 3828311. The reversal of 3828309 is 9038283.

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 not a de Polignac number, because 3828309 - 2⁸ = 3828053 is a prime.

It is a D-number.

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 3828309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3828359) 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, 638049 + ... + 638054.

It is an arithmetic number, because the mean of its divisors is an integer number (1276104).

Almost surely, 2^3828309 is an apocalyptic number.

It is an amenable number.

3828309 is a deficient number, since it is larger than the sum of its proper divisors (1276107).

3828309 is a wasteful number, since it uses less digits than its factorization.

3828309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276106.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 3828309 is about 1956.6065010625. The cubic root of 3828309 is about 156.4356249370.

The spelling of 3828309 in words is "three million, eight hundred twenty-eight thousand, three hundred nine".