3828709 has 4 divisors (see below), whose sum is σ = 4030240. Its totient is φ = 3627180.

The previous prime is 3828701. The next prime is 3828719. The reversal of 3828709 is 9078283.

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 3828709 - 2³ = 3828701 is a prime.

It is a Duffinian number.

3828709 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3828701) 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, 100737 + ... + 100774.

It is an arithmetic number, because the mean of its divisors is an integer number (1007560).

Almost surely, 2^3828709 is an apocalyptic number.

It is an amenable number.

3828709 is a deficient number, since it is larger than the sum of its proper divisors (201531).

3828709 is a wasteful number, since it uses less digits than its factorization.

3828709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201530.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 3828709 is about 1956.7087161864. The cubic root of 3828709 is about 156.4410731275.

The spelling of 3828709 in words is "three million, eight hundred twenty-eight thousand, seven hundred nine".