3878841 has 4 divisors (see below), whose sum is σ = 5171792. Its totient is φ = 2585892.

The previous prime is 3878783. The next prime is 3878843. The reversal of 3878841 is 1488783.

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 not a de Polignac number, because 3878841 - 2⁷ = 3878713 is a prime.

It is a D-number.

It is a Duffinian 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 3878841.

It is not an unprimeable number, because it can be changed into a prime (3878843) 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, 646471 + ... + 646476.

It is an arithmetic number, because the mean of its divisors is an integer number (1292948).

Almost surely, 2^3878841 is an apocalyptic number.

It is an amenable number.

3878841 is a deficient number, since it is larger than the sum of its proper divisors (1292951).

3878841 is a wasteful number, since it uses less digits than its factorization.

3878841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292950.

The product of its digits is 43008, while the sum is 39.

The square root of 3878841 is about 1969.4773418346. The cubic root of 3878841 is about 157.1209124413.

The spelling of 3878841 in words is "three million, eight hundred seventy-eight thousand, eight hundred forty-one".