3828387 has 4 divisors (see below), whose sum is σ = 5104520. Its totient is φ = 2552256.

The previous prime is 3828379. The next prime is 3828389. The reversal of 3828387 is 7838283.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3828387 - 2³ = 3828379 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3828389) 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, 638062 + ... + 638067.

It is an arithmetic number, because the mean of its divisors is an integer number (1276130).

Almost surely, 2^3828387 is an apocalyptic number.

3828387 is a deficient number, since it is larger than the sum of its proper divisors (1276133).

3828387 is a wasteful number, since it uses less digits than its factorization.

3828387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276132.

The product of its digits is 64512, while the sum is 39.

The square root of 3828387 is about 1956.6264334308. The cubic root of 3828387 is about 156.4366873639.

The spelling of 3828387 in words is "three million, eight hundred twenty-eight thousand, three hundred eighty-seven".