3828641 has 4 divisors (see below), whose sum is σ = 3832752. Its totient is φ = 3824532.

The previous prime is 3828637. The next prime is 3828659. The reversal of 3828641 is 1468283.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1468283 = 313 ⋅4691.

It is a cyclic number.

It is not a de Polignac number, because 3828641 - 2² = 3828637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3828598 and 3828607.

It is not an unprimeable number, because it can be changed into a prime (3828611) 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, 86 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (958188).

Almost surely, 2^3828641 is an apocalyptic number.

It is an amenable number.

3828641 is a deficient number, since it is larger than the sum of its proper divisors (4111).

3828641 is a wasteful number, since it uses less digits than its factorization.

3828641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110.

The product of its digits is 9216, while the sum is 32.

The square root of 3828641 is about 1956.6913399921. The cubic root of 3828641 is about 156.4401469619.

The spelling of 3828641 in words is "three million, eight hundred twenty-eight thousand, six hundred forty-one".